{"product_id":"biotin-peg-sub-6-sub-nhs-ester-2nly-2nly","title":"Biotin-PEG6-NHS ester, min. 95 %, 50 mg","description":"\u003cp\u003eBiotin-PEG6-NHS ester is an amine-reactive biotinylation reagent with a minimum purity of 95 %, CAS number 2055045-04-8, empirical formula C₂₉H₄₈N₄O₁₂S and molar mass 676,8 g\/mol. The N-hydroxysuccinimide ester enables covalent coupling to primary amines on proteins, peptides and other biomolecules, while the PEG6 spacer improves solubility and reduces steric hindrance between the biotin moiety and the target. Laboratories use such biotin-PEG-NHS reagents to prepare probes for streptavidin-based capture, ELISA formats, surface functionalisation and imaging assays. The defined linker length and activated ester chemistry support controlled conjugation under typical aqueous or mixed-solvent conditions. This material from manufacturer Carl ROTH fits research and method-development settings that require reliable biotin introduction with a hydrophilic spacer. Clear molecular identity and documented molar mass facilitate stoichiometry calculations and reproducible labelling protocols.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-nl\/collections\/coenzymes-nucleotides-and-vitamins\"\u003eCoenzymes, nucleotides \u0026amp; vitamins\u003c\/a\u003e, in \u003ca href=\"\/en-nl\/collections\/biochemicals-and-reagents\"\u003eBiochemicals \u0026amp; reagents\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eColour: white\u003c\/li\u003e\n\u003cli\u003eForm: solid\u003c\/li\u003e\n\u003cli\u003ePurity (HPLC): ≥95 %\u003c\/li\u003e\n\u003cli\u003eCAS number: 2055045-04-8\u003c\/li\u003e\n\u003cli\u003ePack sizes: 50 mg, 100 mg, 250 mg, 500 mg\u003c\/li\u003e\n\u003cli\u003ePurity: min. 95 %\u003c\/li\u003e\n\u003cli\u003eEmpirical formula: C₂₉H₄₈N₄O₁₂S\u003c\/li\u003e\n\u003cli\u003eMolar mass: 676,8 g\/mol\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -20 °C\u003c\/li\u003e\n\u003cli class=\"lx-tis-li\"\u003eTechnical Information Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/api.carlroth.com\/medias\/SPEZ-2NLY-EN.pdf?context=bWFzdGVyfHNwZWNpZmljYXRpb25zfDEwMjg4M3xhcHBsaWNhdGlvbi9wZGZ8YUdWbEwyZzFNaTg1TWpVME56STRPVFUzT1RneUwxTlFSVnBmTWs1TVdWOUZUaTV3WkdZfDkzMTE1NWNmMTdiODQwZmFmODIzZGFlMzZjNDlhYjg5ZWEzNWRjYjZhOGQ3ODkyMzRmNjc0NTlhODRhZDdlMTc\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline;vertical-align:middle\" title=\"Technical sheet PDF\" aria-label=\"Technical sheet PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli class=\"lx-tis-li\"\u003eSafety Data Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/api.carlroth.com\/medias\/SDB-2NLY-DE-EN.pdf?context=bWFzdGVyfHNlY3VyaXR5RGF0YXNoZWV0c3wyMzcxMTV8YXBwbGljYXRpb24vcGRmfGFHSXhMMmd3WlM4NU1qSTJNemd4TlRrd05UVTRMMU5FUWw4eVRreFpYMFJGWDBWT0xuQmtaZ3w5NzY0NzlkMTA2MzljMjFhZGQ1YmY4NDYyNjI4N2U4OGJhZGFmOTA2MGQ1NjRkYmUxOGJmNjM4YmMwOTNmN2Q4\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline;vertical-align:middle\" title=\"SDS PDF\" aria-label=\"SDS PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"50 mg \/ 1 piece","offer_id":56145626366284,"sku":"2NLY.2","price":246.2,"currency_code":"EUR","in_stock":true},{"title":"50 mg \/ 6+ pieces","offer_id":56145626399052,"sku":"2NLY.2","price":233.89,"currency_code":"EUR","in_stock":true},{"title":"50 mg \/ 24+ pieces","offer_id":56145626431820,"sku":"2NLY.2","price":221.58,"currency_code":"EUR","in_stock":true},{"title":"100 mg \/ 1 piece","offer_id":56145626464588,"sku":"2NLY.3","price":418.2,"currency_code":"EUR","in_stock":true},{"title":"100 mg \/ 6+ pieces","offer_id":56145626497356,"sku":"2NLY.3","price":397.29,"currency_code":"EUR","in_stock":true},{"title":"100 mg \/ 24+ pieces","offer_id":56145626530124,"sku":"2NLY.3","price":376.38,"currency_code":"EUR","in_stock":true},{"title":"250 mg \/ 1 piece","offer_id":56145626562892,"sku":"2NLY.4","price":826.7,"currency_code":"EUR","in_stock":true},{"title":"250 mg \/ 6+ pieces","offer_id":56145626595660,"sku":"2NLY.4","price":785.37,"currency_code":"EUR","in_stock":true},{"title":"250 mg \/ 24+ pieces","offer_id":56145626628428,"sku":"2NLY.4","price":744.03,"currency_code":"EUR","in_stock":true},{"title":"500 mg \/ 1 piece","offer_id":56145626661196,"sku":"2NLY.5","price":1084.7,"currency_code":"EUR","in_stock":true},{"title":"500 mg \/ 6+ pieces","offer_id":56145626693964,"sku":"2NLY.5","price":1030.47,"currency_code":"EUR","in_stock":true},{"title":"500 mg \/ 24+ pieces","offer_id":56145626726732,"sku":"2NLY.5","price":976.23,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1000Wx1000H-2NLY-SF_c9e5918c-909f-4108-a540-8f27b661ae72.jpg?v=1766418668","url":"https:\/\/www.luminixhealth.com\/en-nl\/products\/biotin-peg-sub-6-sub-nhs-ester-2nly-2nly","provider":"Luminix Health","version":"1.0","type":"link"}