Protein Analysis

Enhance your workflow with protein stability and protein quantitation assays built for exceptional sensitivity, reproducibility, and ease of use. Choose protein concentration assays with highly linear response, minimal variability, and stable fluorescent signal, or run rapid, cost-effective protein stability assays on standard qPCR systems, even in the presence of detergents and additives.

Product Spotlight

GloMelt™ 2.0 Thermal Shift Protein Stability Kit

High-throughput fluorescence-based protein stability assay with superior tolerance for detergents and other additives.

AccuOrange™ Protein Quantitation Kit

Highly sensitive protein quantitation assay—excellent linearity, low variability, and stable fluorescence for ≤16 hours.

Resources That Fuel Bright Ideas

View All Resources

Technology Page

Technology: Molecular Biology Reagents for DNA & Protein Detection, Quantitation, & Analysis

FAQ

FAQ: What is the mechanism of the AccuOrange™ Protein Quantitation kit?

There is SDS in the assay buffer of the AccuOrange™ protein concentration kit, but it says the assay can’t tolerate SDS. Why?

FAQ

FAQ: There is SDS in the AccuOrange™ protein concentration assay buffer, but it says the assay can’t tolerate SDS. Why?

Technology Page

Western Blotting Reagents, Buffers, & Accessories

View All Resources

New Products

Featured Products

TrueBlack® Lipofuscin Autofluorescence Quencher

GelRed® Nucleic Acid Gel Stain

Content #1

Content #2

Content #3

img:is([sizes=auto i],[sizes^="auto," i]){contain-intrinsic-size:3000px 1500px}:root{--wp-block-synced-color:#7a00df;--wp-block-synced-color--rgb:122,0,223;--wp-bound-block-color:var(--wp-block-synced-color);--wp-editor-canvas-background:#ddd;--wp-admin-theme-color:#007cba;--wp-admin-theme-color--rgb:0,124,186;--wp-admin-theme-color-darker-10:#006ba1;--wp-admin-theme-color-darker-10--rgb:0,107,160.5;--wp-admin-theme-color-darker-20:#005a87;--wp-admin-theme-color-darker-20--rgb:0,90,135;--wp-admin-border-width-focus:2px}@media (min-resolution:192dpi){:root{--wp-admin-border-width-focus:1.5px}}.wp-element-button{cursor:pointer}:root .has-very-light-gray-background-color{background-color:#eee}:root .has-very-dark-gray-background-color{background-color:#313131}:root .has-very-light-gray-color{color:#eee}:root .has-very-dark-gray-color{color:#313131}:root .has-vivid-green-cyan-to-vivid-cyan-blue-gradient-background{background:linear-gradient(135deg,#00d084,#0693e3)}:root .has-purple-crush-gradient-background{background:linear-gradient(135deg,#34e2e4,#4721fb 50%,#ab1dfe)}:root .has-hazy-dawn-gradient-background{background:linear-gradient(135deg,#faaca8,#dad0ec)}:root .has-subdued-olive-gradient-background{background:linear-gradient(135deg,#fafae1,#67a671)}:root .has-atomic-cream-gradient-background{background:linear-gradient(135deg,#fdd79a,#004a59)}:root .has-nightshade-gradient-background{background:linear-gradient(135deg,#330968,#31cdcf)}:root .has-midnight-gradient-background{background:linear-gradient(135deg,#020381,#2874fc)}:root{--wp--preset--font-size--normal:16px;--wp--preset--font-size--huge:42px}.has-regular-font-size{font-size:1em}.has-larger-font-size{font-size:2.625em}.has-normal-font-size{font-size:var(--wp--preset--font-size--normal)}.has-huge-font-size{font-size:var(--wp--preset--font-size--huge)}.has-text-align-center{text-align:center}.has-text-align-left{text-align:left}.has-text-align-right{text-align:right}.has-fit-text{white-space:nowrap !important}#end-resizable-editor-section{display:none}.aligncenter{clear:both}.items-justified-left{justify-content:flex-start}.items-justified-center{justify-content:center}.items-justified-right{justify-content:flex-end}.items-justified-space-between{justify-content:space-between}.screen-reader-text{border:0;clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;word-wrap:normal !important}.screen-reader-text:focus{background-color:#ddd;clip-path:none;color:#444;display:block;font-size:1em;height:auto;left:5px;line-height:normal;padding:15px 23px 14px;text-decoration:none;top:5px;width:auto;z-index:100000}html :where(.has-border-color){border-style:solid}html :where([style*=border-top-color]){border-top-style:solid}html :where([style*=border-right-color]){border-right-style:solid}html :where([style*=border-bottom-color]){border-bottom-style:solid}html :where([style*=border-left-color]){border-left-style:solid}html :where([style*=border-width]){border-style:solid}html :where([style*=border-top-width]){border-top-style:solid}html :where([style*=border-right-width]){border-right-style:solid}html :where([style*=border-bottom-width]){border-bottom-style:solid}html :where([style*=border-left-width]){border-left-style:solid}html :where(img[class*=wp-image-]){height:auto;max-width:100%}:where(figure){margin:0 0 1em}html :where(.is-position-sticky){--wp-admin--admin-bar--position-offset:var(--wp-admin--admin-bar--height,0px)}@media screen and (max-width:600px){html :where(.is-position-sticky){--wp-admin--admin-bar--position-offset:0px}}.wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}:root{--wp--preset--aspect-ratio--square:1;--wp--preset--aspect-ratio--4-3:4/3;--wp--preset--aspect-ratio--3-4:3/4;--wp--preset--aspect-ratio--3-2:3/2;--wp--preset--aspect-ratio--2-3:2/3;--wp--preset--aspect-ratio--16-9:16/9;--wp--preset--aspect-ratio--9-16:9/16;--wp--preset--color--black:#000;--wp--preset--color--cyan-bluish-gray:#abb8c3;--wp--preset--color--white:#fff;--wp--preset--color--pale-pink:#f78da7;--wp--preset--color--vivid-red:#cf2e2e;--wp--preset--color--luminous-vivid-orange:#ff6900;--wp--preset--color--luminous-vivid-amber:#fcb900;--wp--preset--color--light-green-cyan:#7bdcb5;--wp--preset--color--vivid-green-cyan:#00d084;--wp--preset--color--pale-cyan-blue:#8ed1fc;--wp--preset--color--vivid-cyan-blue:#0693e3;--wp--preset--color--vivid-purple:#9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple:linear-gradient(135deg,#0693e3 0%,#9b51e0 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan:linear-gradient(135deg,#7adcb4 0%,#00d082 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange:linear-gradient(135deg,#fcb900 0%,#ff6900 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red:linear-gradient(135deg,#ff6900 0%,#cf2e2e 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray:linear-gradient(135deg,#eee 0%,#a9b8c3 100%);--wp--preset--gradient--cool-to-warm-spectrum:linear-gradient(135deg,#4aeadc 0%,#9778d1 20%,#cf2aba 40%,#ee2c82 60%,#fb6962 80%,#fef84c 100%);--wp--preset--gradient--blush-light-purple:linear-gradient(135deg,#ffceec 0%,#9896f0 100%);--wp--preset--gradient--blush-bordeaux:linear-gradient(135deg,#fecda5 0%,#fe2d2d 50%,#6b003e 100%);--wp--preset--gradient--luminous-dusk:linear-gradient(135deg,#ffcb70 0%,#c751c0 50%,#4158d0 100%);--wp--preset--gradient--pale-ocean:linear-gradient(135deg,#fff5cb 0%,#b6e3d4 50%,#33a7b5 100%);--wp--preset--gradient--electric-grass:linear-gradient(135deg,#caf880 0%,#71ce7e 100%);--wp--preset--gradient--midnight:linear-gradient(135deg,#020381 0%,#2874fc 100%);--wp--preset--font-size--small:13px;--wp--preset--font-size--medium:20px;--wp--preset--font-size--large:36px;--wp--preset--font-size--x-large:42px;--wp--preset--font-family--0-qi-6-mx-1-d-jougqbt-0-gvtjpa-787-weuyjdmkxemmez:"0QI6MX1D_JOuGQbT0gvTJPa787weuyJDmKxemMeZ";--wp--preset--font-family--0-qi-8-mx-1-d-joumw-hldo-6-t-2-wv-9-knw-mofkq-18-ndezzz-0:"0QI8MX1D_JOuMw_hLdO6T2wV9KnW-MoFkq18ndeZzZ0";--wp--preset--font-family--1-ptxg-8-zys-skggpn-4-iegvnhyvvelxvs-9-pycknla-3-jc-9-c:"1Ptxg8zYS_SKggPN4iEgvnHyvveLxVs9pYCKNLA3JC9c";--wp--preset--font-family--1-pt-g-8-zys-skggpnycgsqamb-1-w-0-lwk-4-s-4-y-lprevit-9-c-2-c-8:"1Pt_g8zYS_SKggPNyCgSQamb1W0lwk4S4Y_LPrEVIT9c2c8";--wp--preset--font-family--aft-07-pxzy-382-xsxx-63-luyjspuqb-0-pl-6-oqqxrzlnvbvzedvjtj-v-7-tiazkmn-4-thrjcwhqoq:"aFT07PxzY382XsXX63LUYJSPUqb0pL6OQqxrZLnVbvZedvJtj-V7tIaZKMN4tHrJcwHqoQ";--wp--preset--font-family--aft-67-pxzy-382-xsxx-63-luyl-6-gyfcan-6-njrkp-vpjfjmshrpsgfut-8-ou-7-awivytvjmywe:"aFT67PxzY382XsXX63LUYL6GYFcan6NJrKp-VPjfJMShrpsGFUt8oU7awIVytVjMYwE";--wp--preset--font-family--cy-9-kfjocx-1-hbuyalurk-439-vogqc-9-yfzcyg-7-orzalp-4-obnf-7-ftxglsmwot-zfhdwwgeci:"cY9kfjOCX1hbuyalUrK439vogqC9yFZCYg7oRZaLP4obnf7fTXglsMwoT-ZFHDWwgECi";--wp--preset--font-family--cy-9-qfjocx-1-hbuyalurk-49-dlac-06-g-1-zgszbtobczbdxxd-9-jvf-438-wei-acexepjcgga:"cY9qfjOCX1hbuyalUrK49dLac06G1ZGsZBtoBCzBDXXD9JVF438weI_ACexEPjCggA";--wp--preset--font-family--h-4-c-0-bxocl-9-bbnla-nhiq-6-ogziljm-9-otsa-9-kqmfdq-7-s-r-0-yvxda:"H4c0BXOCl9bbnla_nHIq6oGzilJm9otsA9kQmfdq7S-r0YvxdA";--wp--preset--font-family--h-4-c-0-bxocl-9-bbnla-nhiq-6-ogziljm-9-otsa-9-kqq-dq-7-s-r-0-yvxda:"H4c0BXOCl9bbnla_nHIq6oGzilJm9otsA9kQq_dq7S-r0YvxdA";--wp--preset--font-family--h-4-c-2-bxocl-9-bbnla-nhia-47-nmujsnbcvrfhftq-7-fg-7-a-2-uwys:"H4c2BXOCl9bbnla_nHIA47NMUjsNbCVrFhFTQ7Fg7A2uwYs";--wp--preset--font-family--h-4-c-2-bxocl-9-bbnla-nhia-47-nmujsnbcvrfintq-7-fg-7-a-2-uwys:"H4c2BXOCl9bbnla_nHIA47NMUjsNbCVrFiNTQ7Fg7A2uwYs";--wp--preset--font-family--i-7-dfifdwyjgaamftzd-qa-1-zeelmy-79-qj-1-hosy-9-dw-6-if-3-bruz-1-r-5-t:"i7dfIFdwYjGaAMFtZd_QA1Zeelmy79QJ1HOSY9Dw6If3bRUz1r5t";--wp--preset--font-family--i-7-dzifdwyjgaamftzd-qa-3-xxskzqhr-tenshtjt-qy-32-txaj-1-g:"i7dZIFdwYjGaAMFtZd_QA3xXSKZqhr-TenSHTJT_qY32TxAj1g";--wp--preset--font-family--ijwbbxyifdniv-7-net-3-ksjbvdv-49-rz-8-tde-0-u-1-dypfkj-1-o:"iJWbBXyIfDnIV7nEt3KSJbVDV49rz8tdE0U1dYPFkJ1O";--wp--preset--font-family--ijwbbxyifdniv-7-net-3-ksjbvdv-49-rz-8-vdfeu-1-dypfkj-1-o:"iJWbBXyIfDnIV7nEt3KSJbVDV49rz8vdFEU1dYPFkJ1O";--wp--preset--font-family--ijwzbxyifdniv-5-pnhy-1-ktn-7-z-yh-b-4-i-1-vu-80-v-4-bvka:"iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-B4i1VU80V4bVkA";--wp--preset--font-family--ijwzbxyifdniv-5-pnhy-1-ktn-7-z-yh-h-4-1-vu-80-v-4-bvka:"iJWZBXyIfDnIV5PNhY1KTN7Z-Yh-h4-1VU80V4bVkA";--wp--preset--font-family--jtufjig-1-i-6-t-8-kchkm-459-wx-7-xqyxk-0-vooz-6-jq-0-n-6-axp-p-7-k-5-ilg:"JTUFjIg1_i6t8kCHKm459Wx7xQYXK0vOoz6jq0N6aXp-p7K5ILg";--wp--preset--font-family--jtufjig-1-i-6-t-8-kchkm-459-wx-7-xqyxk-0-vooz-6-jq-5-z-9-axp-p-7-k-5-ilg:"JTUFjIg1_i6t8kCHKm459Wx7xQYXK0vOoz6jq5Z9aXp-p7K5ILg";--wp--preset--font-family--jtuhjig-1-i-6-t-8-kchkm-4532-vjot-5-qnfgpctz-6-ew-7-y-3-tcoqk-5:"JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew7Y3tcoqK5";--wp--preset--font-family--jtuhjig-1-i-6-t-8-kchkm-4532-vjot-5-qnfgpcum-70-w-7-y-3-tcoqk-5:"JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w7Y3tcoqK5";--wp--preset--font-family--neuehelveticapro:"NeueHelveticaPro";--wp--preset--font-family--qfda-35-wcmi-96-ajtm-83-upeyoax-6-qpnlo-6-ovprpjcltce-og:"qFda35WCmI96Ajtm83upeyoaX6QPnlo6ovPrPJCLtce-og";--wp--preset--font-family--qfda-35-wcmi-96-ajtm-83-upeyoax-6-qpnlo-6-pprpjcltce-og:"qFda35WCmI96Ajtm83upeyoaX6QPnlo6_PPrPJCLtce-og";--wp--preset--font-family--qfdu-35-wcmi-96-ajtm-81-ggsdxcns-vmf-0-vnladepqkl-8-kuosgz:"qFdU35WCmI96Ajtm81GgSdXCNs-VMF0vNLADepqKl8Kuosgz";--wp--preset--font-family--qfdu-35-wcmi-96-ajtm-81-ggsdxcns-vmf-0-vnlbdepqkl-8-kuosgz:"qFdU35WCmI96Ajtm81GgSdXCNs-VMF0vNLBdepqKl8Kuosgz";--wp--preset--font-family--qgy-9-z-wnahgadqq-43-rh-ebrnlwyyfepxpogu-3-msjpo-3-zkydsqq:"QGY9z_wNahGAdqQ43Rh_ebrnlwyYfEPxPoGU3msJpo3ZKyDSQQ";--wp--preset--font-family--qgy-z-wnahgadqq-43-rhvcigyt-2-xz-5-u-32-k-0-nxni-0-dp-6-coya:"QGY_z_wNahGAdqQ43RhVcIgYT2Xz5u32K0nXNi0Dp6_cOyA";--wp--preset--font-family--tdbd-2-owug-0-mkmsua-7-lzr-7-vs:"tDbD2oWUg0MKmSUa7Lzr7vs";--wp--preset--font-family--tdbn-2-owug-0-mkqsiq-7-z-7-u-vvijq:"tDbN2oWUg0MKqSIQ7Z7u_vvijQ";--wp--preset--font-family--uccm-3-fwrk-3-iltcvneqg-7-ca-725-jhhknnqk-4-j-1-eblham-8-srxtc-2-dthij-ek-7-mea:"UcCM3FwrK3iLTcvneQg7Ca725JhhKnNqk4j1ebLhAm8SrXTc2dthiJ-Ek-7MeA";--wp--preset--font-family--uccm-3-fwrk-3-iltcvneqg-7-ca-725-jhhknnqk-4-j-1-eblham-8-srxtc-69-thij-ek-7-mea:"UcCM3FwrK3iLTcvneQg7Ca725JhhKnNqk4j1ebLhAm8SrXTc69thiJ-Ek-7MeA";--wp--preset--font-family--uccm-3-fwrk-3-iltcvneqg-7-ca-725-jhhknnqk-4-j-1-eblham-8-srxtcb-9-xhij-ek-7-mea:"UcCM3FwrK3iLTcvneQg7Ca725JhhKnNqk4j1ebLhAm8SrXTcB9xhiJ-Ek-7MeA";--wp--preset--font-family--ucco-3-fwrk-3-iltehus-nvmrmxcp-50-sjiw-2-bokodukmmevugkymz-1-rib-2-bg-4:"UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuGKYMZ1rib2Bg-4";--wp--preset--font-family--ucco-3-fwrk-3-iltehus-nvmrmxcp-50-sjiw-2-bokodukmmevui-6-fmz-1-rib-2-bg-4:"UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuI6fMZ1rib2Bg-4";--wp--preset--font-family--ucco-3-fwrk-3-iltehus-nvmrmxcp-50-sjiw-2-bokodukmmevulyfmz-1-rib-2-bg-4:"UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfMZ1rib2Bg-4";--wp--preset--spacing--20:.44rem;--wp--preset--spacing--30:.67rem;--wp--preset--spacing--40:1rem;--wp--preset--spacing--50:1.5rem;--wp--preset--spacing--60:2.25rem;--wp--preset--spacing--70:3.38rem;--wp--preset--spacing--80:5.06rem;--wp--preset--shadow--natural:6px 6px 9px rgba(0,0,0,.2);--wp--preset--shadow--deep:12px 12px 50px rgba(0,0,0,.4);--wp--preset--shadow--sharp:6px 6px 0px rgba(0,0,0,.2);--wp--preset--shadow--outlined:6px 6px 0px -3px #fff,6px 6px #000;--wp--preset--shadow--crisp:6px 6px 0px #000}:where(.is-layout-flex){gap:.5em}:where(.is-layout-grid){gap:.5em}body .is-layout-flex{display:flex}.is-layout-flex{flex-wrap:wrap;align-items:center}.is-layout-flex > :is(*, div){margin:0}body .is-layout-grid{display:grid}.is-layout-grid > :is(*, div){margin:0}:where(.wp-block-columns.is-layout-flex){gap:2em}:where(.wp-block-columns.is-layout-grid){gap:2em}:where(.wp-block-post-template.is-layout-flex){gap:1.25em}:where(.wp-block-post-template.is-layout-grid){gap:1.25em}.has-black-color{color:var(--wp--preset--color--black) !important}.has-cyan-bluish-gray-color{color:var(--wp--preset--color--cyan-bluish-gray) !important}.has-white-color{color:var(--wp--preset--color--white) !important}.has-pale-pink-color{color:var(--wp--preset--color--pale-pink) !important}.has-vivid-red-color{color:var(--wp--preset--color--vivid-red) !important}.has-luminous-vivid-orange-color{color:var(--wp--preset--color--luminous-vivid-orange) !important}.has-luminous-vivid-amber-color{color:var(--wp--preset--color--luminous-vivid-amber) !important}.has-light-green-cyan-color{color:var(--wp--preset--color--light-green-cyan) !important}.has-vivid-green-cyan-color{color:var(--wp--preset--color--vivid-green-cyan) !important}.has-pale-cyan-blue-color{color:var(--wp--preset--color--pale-cyan-blue) !important}.has-vivid-cyan-blue-color{color:var(--wp--preset--color--vivid-cyan-blue) !important}.has-vivid-purple-color{color:var(--wp--preset--color--vivid-purple) !important}.has-black-background-color{background-color:var(--wp--preset--color--black) !important}.has-cyan-bluish-gray-background-color{background-color:var(--wp--preset--color--cyan-bluish-gray) !important}.has-white-background-color{background-color:var(--wp--preset--color--white) !important}.has-pale-pink-background-color{background-color:var(--wp--preset--color--pale-pink) !important}.has-vivid-red-background-color{background-color:var(--wp--preset--color--vivid-red) !important}.has-luminous-vivid-orange-background-color{background-color:var(--wp--preset--color--luminous-vivid-orange) !important}.has-luminous-vivid-amber-background-color{background-color:var(--wp--preset--color--luminous-vivid-amber) !important}.has-light-green-cyan-background-color{background-color:var(--wp--preset--color--light-green-cyan) !important}.has-vivid-green-cyan-background-color{background-color:var(--wp--preset--color--vivid-green-cyan) !important}.has-pale-cyan-blue-background-color{background-color:var(--wp--preset--color--pale-cyan-blue) !important}.has-vivid-cyan-blue-background-color{background-color:var(--wp--preset--color--vivid-cyan-blue) !important}.has-vivid-purple-background-color{background-color:var(--wp--preset--color--vivid-purple) !important}.has-black-border-color{border-color:var(--wp--preset--color--black) !important}.has-cyan-bluish-gray-border-color{border-color:var(--wp--preset--color--cyan-bluish-gray) !important}.has-white-border-color{border-color:var(--wp--preset--color--white) !important}.has-pale-pink-border-color{border-color:var(--wp--preset--color--pale-pink) !important}.has-vivid-red-border-color{border-color:var(--wp--preset--color--vivid-red) !important}.has-luminous-vivid-orange-border-color{border-color:var(--wp--preset--color--luminous-vivid-orange) !important}.has-luminous-vivid-amber-border-color{border-color:var(--wp--preset--color--luminous-vivid-amber) !important}.has-light-green-cyan-border-color{border-color:var(--wp--preset--color--light-green-cyan) !important}.has-vivid-green-cyan-border-color{border-color:var(--wp--preset--color--vivid-green-cyan) !important}.has-pale-cyan-blue-border-color{border-color:var(--wp--preset--color--pale-cyan-blue) !important}.has-vivid-cyan-blue-border-color{border-color:var(--wp--preset--color--vivid-cyan-blue) !important}.has-vivid-purple-border-color{border-color:var(--wp--preset--color--vivid-purple) !important}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background:var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background:var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background:var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background:var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background:var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important}.has-cool-to-warm-spectrum-gradient-background{background:var(--wp--preset--gradient--cool-to-warm-spectrum) !important}.has-blush-light-purple-gradient-background{background:var(--wp--preset--gradient--blush-light-purple) !important}.has-blush-bordeaux-gradient-background{background:var(--wp--preset--gradient--blush-bordeaux) !important}.has-luminous-dusk-gradient-background{background:var(--wp--preset--gradient--luminous-dusk) !important}.has-pale-ocean-gradient-background{background:var(--wp--preset--gradient--pale-ocean) !important}.has-electric-grass-gradient-background{background:var(--wp--preset--gradient--electric-grass) !important}.has-midnight-gradient-background{background:var(--wp--preset--gradient--midnight) !important}.has-small-font-size{font-size:var(--wp--preset--font-size--small) !important}.has-medium-font-size{font-size:var(--wp--preset--font-size--medium) !important}.has-large-font-size{font-size:var(--wp--preset--font-size--large) !important}.has-x-large-font-size{font-size:var(--wp--preset--font-size--x-large) !important}.woocommerce form .form-row .required{visibility:visible}.h-captcha{position:relative;display:block;margin-bottom:2rem;padding:0;clear:both}.h-captcha[data-size="normal"]{width:302px;height:76px}.h-captcha[data-size="compact"]{width:158px;height:138px}.h-captcha[data-size="invisible"]{display:none}.h-captcha iframe{z-index:1}.h-captcha::before{content:"";display:block;position:absolute;top:0;left:0;background:url("https://biotium-woo.supremeclients.com/wp-content/plugins/hcaptcha-for-forms-and-more/assets/images/hcaptcha-div-logo.svg") no-repeat;border:1px solid rgba(255,255,255,0);border-radius:4px;box-sizing:border-box}.h-captcha::after{content:"The hCaptcha loading is delayed until user interaction.";font-family:-apple-system,system-ui,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,"Helvetica Neue",Arial,sans-serif;font-size:10px;font-weight:500;position:absolute;top:0;bottom:0;left:0;right:0;box-sizing:border-box;color:#bf1722;opacity:0}.h-captcha:not(:has(iframe))::after{animation:hcap-msg-fade-in .3s ease forwards;animation-delay:2s}.h-captcha:has(iframe)::after{animation:none;opacity:0}@keyframes hcap-msg-fade-in{to{opacity:1}}.h-captcha[data-size="normal"]::before{width:302px;height:76px;background-position:93.8% 28%}.h-captcha[data-size="normal"]::after{width:302px;height:76px;display:flex;flex-wrap:wrap;align-content:center;line-height:normal;padding:0 75px 0 10px}.h-captcha[data-size="compact"]::before{width:158px;height:138px;background-position:49.9% 78.8%}.h-captcha[data-size="compact"]::after{width:158px;height:138px;text-align:center;line-height:normal;padding:24px 10px 10px 10px}.h-captcha[data-theme="light"]::before,body.is-light-theme .h-captcha[data-theme="auto"]::before,.h-captcha[data-theme="auto"]::before{background-color:#fafafa;border:1px solid #e0e0e0}.h-captcha[data-theme="dark"]::before,body.is-dark-theme .h-captcha[data-theme="auto"]::before,html.wp-dark-mode-active .h-captcha[data-theme="auto"]::before,html.drdt-dark-mode .h-captcha[data-theme="auto"]::before{background-image:url("https://biotium-woo.supremeclients.com/wp-content/plugins/hcaptcha-for-forms-and-more/assets/images/hcaptcha-div-logo-white.svg");background-repeat:no-repeat;background-color:#333;border:1px solid #f5f5f5}@media (prefers-color-scheme:dark){.h-captcha[data-theme="auto"]::before{background-image:url("https://biotium-woo.supremeclients.com/wp-content/plugins/hcaptcha-for-forms-and-more/assets/images/hcaptcha-div-logo-white.svg");background-repeat:no-repeat;background-color:#333;border:1px solid #f5f5f5}}.h-captcha[data-theme="custom"]::before{background-color:initial}.h-captcha[data-size="invisible"]::before,.h-captcha[data-size="invisible"]::after{display:none}.h-captcha iframe{position:relative}.algolia-search-highlight{background-color:#fffbcc;border-radius:2px;font-style:normal}.gform_previous_button+.h-captcha{margin-top:2rem}.gform_footer.before .h-captcha[data-size="normal"]{margin-bottom:3px}.gform_footer.before .h-captcha[data-size="compact"]{margin-bottom:0}.gform_wrapper.gravity-theme .gform_footer,.gform_wrapper.gravity-theme .gform_page_footer{flex-wrap:wrap}.gform_wrapper.gravity-theme .h-captcha,.gform_wrapper.gravity-theme .h-captcha{margin:0;flex-basis:100%}.gform_wrapper.gravity-theme input[type="submit"],.gform_wrapper.gravity-theme input[type="submit"]{align-self:flex-start}.gform_wrapper.gravity-theme .h-captcha~input[type="submit"],.gform_wrapper.gravity-theme .h-captcha~input[type="submit"]{margin:1em 0 0 0 !important}.woocommerce-form-register .h-captcha{margin-top:2rem}.category-block .category-elemnts{background-size:486px 383px !important}.category-block .category-elemnts:hover{background-size:550px 400px !important}body.oxygen-builder-body .aos-init,.oxygen-builder-body .aos-disabled{opacity:0 !important;pointer-events:none;transform:none !important;animation:none !important}body.oxygen-builder-body .your-menu-class .menu-item:hover > .sub-menu{display:none !important;pointer-events:none !important;visibility:hidden !important}.cta--mobile-only{order:2;padding:0 !important;display:inline-block !important}@media only screen and (min-width: 1080px){.cta{display:flex;align-items:center;justify-content:space-between;padding-left:190px !important}}.cta > span{order:1}.qohdr{order:3 !important;padding-left:0 !important}.hideLT1024{order:4;margin-left:0 !important}@media only screen and (max-width: 1080px){.cta > span{padding-top:12px;line-height:18px !important}}.cards{max-width:65%}.specoff-grid .thumb img{max-width:75%}.efp-menu-item .svg-earthfriendly{height:16px;width:32px;fill:white !important}.svg-icon__wrap--menu .svg-earthfriendly{fill:white !important}#menu-item-315053 a{padding:11px 65px}#menu-item-315053 .leftIconMenu{top:14px;left:12px}#menu-item-315053 .leftIconMenu .svg-earthfriendly{height:24px}#label_11_9_1{padding-left:24px}#input_11_9 li{display:flex}.noChildren:hover{background:#46b5e8}.fw{transition:all .5s ease}.fw:hover{background:#46b5e8}.fw:hover span{color:#fff}#gform_fields_8 .gfield_checkbox li{display:flex}#gform_fields_8 .gfield_checkbox li label{margin-left:16px}input[type=radio]{box-shadow:none !important}@media (min-width: 1280px){.product-hero-section{background-image:url("https://cdn-ileilbi.nitrocdn.com/eWSZLlbrikNVBIrSgonrMeGOOOLCGrAt/assets/images/optimized/rev-cb9d832/biotium-woo.supremeclients.com/wp-content/uploads/2025/10/Researcher-mixed-DNA-polymerase-and-oligonuclotides-mixture-scaled.jpg");background-position:100% center;background-size:contain}.product-hero-section.nitro-lazy{background-image:none !important}}@media (min-width: 993px) and (max-width: 1280px){.product-hero-section{background-image:url("https://cdn-ileilbi.nitrocdn.com/eWSZLlbrikNVBIrSgonrMeGOOOLCGrAt/assets/images/optimized/rev-cb9d832/biotium-woo.supremeclients.com/wp-content/uploads/2025/10/Researcher-mixed-DNA-polymerase-and-oligonuclotides-mixture-scaled.jpg");background-position:100% center;background-size:cover}.product-hero-section.nitro-lazy{background-image:none !important}}@media (min-width: 767px) and (max-width: 993px){.product-hero-section{background-image:url("https://cdn-ileilbi.nitrocdn.com/eWSZLlbrikNVBIrSgonrMeGOOOLCGrAt/assets/images/optimized/rev-cb9d832/biotium-woo.supremeclients.com/wp-content/uploads/2025/10/Researcher-mixed-DNA-polymerase-and-oligonuclotides-mixture-scaled.jpg");background-position:100% center;background-size:cover}.product-hero-section.nitro-lazy{background-image:none !important}}.ct-FontAwesomeicon-close{width:.78571428571429em}.ct-FontAwesomeicon-arrow-circle-o-down{width:.85714285714286em}.ct-FontAwesomeicon-angle-right{width:.32142857142857em}.ct-FontAwesomeicon-ellipsis-v{width:.21428571428571em}.oxel_horizontal_divider__line{flex-grow:1}

Protein Analysis

AccuOrange™ Protein Quantitation Kit

GloMelt™ 2.0 Thermal Shift Protein Stability Kit

GloMelt™ Thermal Shift Protein Stability Kit

Product Spotlight

GloMelt™ 2.0 Thermal Shift Protein Stability Kit

AccuOrange™ Protein Quantitation Kit

Resources That Fuel Bright Ideas

Technology: Molecular Biology Reagents for DNA & Protein Detection, Quantitation, & Analysis

FAQ: What is the mechanism of the AccuOrange™ Protein Quantitation kit?

FAQ: There is SDS in the AccuOrange™ protein concentration assay buffer, but it says the assay can’t tolerate SDS. Why?

Western Blotting Reagents, Buffers, & Accessories

Stay updated with news and promotions

Featured Products

Protein Analysis

AccuOrange™ Protein Quantitation Kit

GloMelt™ 2.0 Thermal Shift Protein Stability Kit

GloMelt™ Thermal Shift Protein Stability Kit

Product Spotlight

GloMelt™ 2.0 Thermal Shift Protein Stability Kit

AccuOrange™ Protein Quantitation Kit

Power Up Protein Characterization

From protein stability to protein quantitation assays, take a look at the science behind our high-performance reagents—engineered for reproducible R&D.

Resources That Fuel Bright Ideas

Technology: Molecular Biology Reagents for DNA & Protein Detection, Quantitation, & Analysis

FAQ: What is the mechanism of the AccuOrange™ Protein Quantitation kit?

FAQ: There is SDS in the AccuOrange™ protein concentration assay buffer, but it says the assay can’t tolerate SDS. Why?

Western Blotting Reagents, Buffers, & Accessories

Stay updated with news and promotions

Glowing Products for Science™

Featured Products