NO & ROS Reagents

Illuminate oxidative stress with powerful tools for nitric oxide (NO) and reactive oxygen species (ROS) detection, modulation, and inhibition. Measure NO with precision, track oxidative stress with fluorescent probes, and control NOS activity with selective inhibitors. Whether you need spontaneous NO donors or targeted ROS indicators, choose reliable tools for bright, reproducible results.

Product Spotlight

Resources That Fuel Bright Ideas

View All Resources

Spectra viewer

Fluorescence Spectra Viewer: Compare and combine dyes, lasers, and emission filters

Blog

Cell Viability- Where to Begin?

Technology Page

Cellular Stains

FAQ

FAQ: My product was accidentally left out at room temperature or exposed to light. Is it ruined?

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/Depict-a-high-quality-medical-style-image-of-a-single-cell-partially-damaged-by-oxidative-stress.-Shutterstock-AI.-Shutterstock.com_.jpg");background-position:104% center;background-size:42% auto}.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/Depict-a-high-quality-medical-style-image-of-a-single-cell-partially-damaged-by-oxidative-stress.-Shutterstock-AI.-Shutterstock.com_.jpg");background-position:104% center;background-size:42% auto}.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/Depict-a-high-quality-medical-style-image-of-a-single-cell-partially-damaged-by-oxidative-stress.-Shutterstock-AI.-Shutterstock.com_.jpg");background-position:104% center;background-size:contain}.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}

NO & ROS Reagents

Nitric Oxide Synthase Inhibitors

Nitric Oxide Detection

Nitric Oxide Donors

Reactive Oxygen Species Indicators

Product Spotlight

Griess Reagent Kit

Dihydrorhodamine 123, Dihydrochloride Salt

H2DCFDA

Spermine NONOate

Dihydroethidium (Hydroethidium)

L-NIL

NOS Inhibitor Kit

L-NMMA

Resources That Fuel Bright Ideas

Fluorescence Spectra Viewer: Compare and combine dyes, lasers, and emission filters

Cell Viability- Where to Begin?

Cellular Stains

FAQ: My product was accidentally left out at room temperature or exposed to light. Is it ruined?

Stay updated with news and promotions

Featured Products

NO & ROS Reagents

Nitric Oxide Synthase Inhibitors

Nitric Oxide Detection

Nitric Oxide Donors

Reactive Oxygen Species Indicators

Product Spotlight

Griess Reagent Kit

Dihydrorhodamine 123, Dihydrochloride Salt

H2DCFDA

Spermine NONOate

Dihydroethidium (Hydroethidium)

L-NIL

NOS Inhibitor Kit

L-NMMA

Comprehensive NO & ROS Detection

Explore our robust redox biology reagents for versatile NO and ROS detection, spontaneous NO release, and selective or non-selective NOS inhibition.

Resources That Fuel Bright Ideas

Fluorescence Spectra Viewer: Compare and combine dyes, lasers, and emission filters

Cell Viability- Where to Begin?

Cellular Stains

FAQ: My product was accidentally left out at room temperature or exposed to light. Is it ruined?

Stay updated with news and promotions

Glowing Products for Science™

Featured Products