{"product_id":"pe-22-28-research-peptide","title":"PE-22-28 - Research Grade Peptide","description":"\u003cdiv class=\"research-scientific-product-description\" style=\"font-family: Arial, Helvetica, sans-serif; font-size: 15px; line-height: 1.7; color: #222222; overflow-wrap: anywhere;\"\u003e\n\n  \u003ch3 id=\"pe-22-28-research-grade-peptide\" style=\"margin: 0 0 18px; color: #00455f; line-height: 1.35;\"\u003e\n    PE-22-28 – Research Grade Peptide\n  \u003c\/h3\u003e\n\n  \u003cp style=\"margin: 0 0 20px; padding: 16px 18px; color: #c00000; background-color: #fff5f5; border-left: 4px solid #c00000; font-size: 14px; line-height: 1.65;\"\u003e\n    \u003cstrong\u003eFor research purposes only.\u003c\/strong\u003e\n    This product is supplied exclusively for scientific laboratory research and analytical purposes.\n    It is not intended for human or animal use and must not be used in any way that contravenes\n    applicable laws or the requirements of the Medicines and Healthcare products Regulatory Agency.\n  \u003c\/p\u003e\n\n  \u003cul style=\"margin: 0 0 20px; padding-left: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eResearch-grade PE-22-28 peptide supplied exclusively for laboratory use.\u003c\/strong\u003e\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eSupplied as lyophilised material in sealed, flip-top laboratory vials.\u003c\/strong\u003e\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003eBatch documentation available where supplied.\u003c\/strong\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin: 0 0 20px;\"\u003e\n    All of our peptides are supplied strictly for scientific research and laboratory use.\n    The stated quantity applies to an individual vial unless the selected product option\n    expressly identifies a multi-vial laboratory pack. Refer to the product label and\n    applicable batch documentation for the declared peptide content, formulation and\n    any additional components.\n  \u003c\/p\u003e\n\n  \u003ch3 id=\"pe-22-28-chemical-information\" style=\"margin: 28px 0 14px; color: #00455f; line-height: 1.35;\"\u003e\n    Chemical Information\n  \u003c\/h3\u003e\n\n  \u003c!--\n    Chemical information retained from the supplied PE-22-28 description.\n    The registry number, formula and sequence are consistent with external\n    reference documentation. The supplied molar mass is retained, not replaced\n    by an analytical result. No numerical purity or salt form has been inferred.\n    Reference checking does not verify the identity or composition of a batch.\n  --\u003e\n\n  \u003cul style=\"margin: 0 0 18px; padding-left: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eProduct name:\u003c\/strong\u003e PE-22-28\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eProduct reference:\u003c\/strong\u003e PEP091\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eAlternative name and description:\u003c\/strong\u003e PE-22-28; spadin analogue.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eReference Chemical Abstracts Service registry number:\u003c\/strong\u003e 1801959-12-5.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eReference molecular formula:\u003c\/strong\u003e\n      C\u003csub\u003e35\u003c\/sub\u003eH\u003csub\u003e55\u003c\/sub\u003eN\u003csub\u003e11\u003c\/sub\u003eO\u003csub\u003e9\u003c\/sub\u003e.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eMolar mass as supplied:\u003c\/strong\u003e 773.89 grams per mole.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eSequence:\u003c\/strong\u003e GVSWGLR.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eExpanded amino acid sequence:\u003c\/strong\u003e Gly-Val-Ser-Trp-Gly-Leu-Arg.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003ePhysical presentation:\u003c\/strong\u003e Lyophilised laboratory material.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003ePurity specification:\u003c\/strong\u003e\n      Not specified in the supplied product information. Refer to the completed\n      batch Certificate of Analysis for the analytical method, acceptance criterion\n      and reported result.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin: 0 0 20px;\"\u003e\n    The chemical identifiers, formula, molar mass and sequence above are reference\n    information, not verified results for the supplied batch. Confirm the exact\n    peptide identity, terminal structure, salt form and formulation against the\n    manufacturer's specification and completed batch documentation.\n  \u003c\/p\u003e\n\n  \u003c!--\n    ULTIMATE range wording adapted from the existing product template.\n    Before publication, confirm that the additional purification and more stringent\n    endotoxin-testing specification apply specifically to PE-22-28 and are supported\n    by manufacturing records and completed batch documentation.\n  --\u003e\n\n  \u003csection class=\"ultimate-research-grade\" aria-labelledby=\"ultimate-pe-22-28-heading\" style=\"box-sizing: border-box; width: 100%; margin: 32px 0; font-family: Arial, Helvetica, sans-serif;\"\u003e\n    \u003cdiv style=\"\n      position: relative;\n      overflow: hidden;\n      box-sizing: border-box;\n      width: 100%;\n      padding: 28px;\n      background-color: #080808;\n      background-image: linear-gradient(135deg, #020202 0%, #090909 25%, #1c1c1c 56%, #101010 77%, #030303 100%);\n      border: 1px solid #d4af37;\n      border-radius: 17px;\n      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 239, 170, 0.08);\n    \"\u003e\n\n      \u003cdiv aria-hidden=\"true\" style=\"\n        position: absolute;\n        top: -135px;\n        right: -105px;\n        width: 360px;\n        height: 360px;\n        border-radius: 50%;\n        pointer-events: none;\n        background: radial-gradient(circle, rgba(255, 230, 139, 0.22) 0%, rgba(212, 175, 55, 0.08) 35%, rgba(212, 175, 55, 0) 73%);\n      \"\u003e\u003c\/div\u003e\n\n      \u003cdiv aria-hidden=\"true\" style=\"\n        position: absolute;\n        top: 0;\n        left: 7%;\n        width: 86%;\n        height: 2px;\n        background: linear-gradient(90deg, transparent 0%, #d4af37 24%, #ffeea9 50%, #d4af37 76%, transparent 100%);\n      \"\u003e\u003c\/div\u003e\n\n      \u003cdiv style=\"position: relative; z-index: 1;\"\u003e\n\n        \u003cdiv style=\"\n          display: inline-block;\n          box-sizing: border-box;\n          max-width: 100%;\n          margin: 0 0 18px;\n          padding: 8px 14px;\n          color: #f7df88;\n          background-color: rgba(212, 175, 55, 0.09);\n          border: 1px solid rgba(247, 223, 136, 0.65);\n          border-radius: 999px;\n          font-size: 11px;\n          font-weight: 700;\n          line-height: 1.5;\n          letter-spacing: 1.4px;\n          text-transform: uppercase;\n        \"\u003e\n          Premium ULTIMATE Laboratory Specification\n        \u003c\/div\u003e\n\n        \u003ch3 id=\"ultimate-pe-22-28-heading\" style=\"margin: 0; color: #ffffff; font-size: 30px; font-weight: 700; line-height: 1.25;\"\u003e\n          \u003cspan style=\"color: #f4d978; text-shadow: 0 0 18px rgba(212, 175, 55, 0.23);\"\u003eULTIMATE\u003c\/span\u003e\n          \u003cspan style=\"display: inline-block; color: #ffffff;\"\u003ePE-22-28\u003c\/span\u003e\n        \u003c\/h3\u003e\n\n        \u003cp style=\"margin: 10px 0 0; color: #f0d77d; font-size: 13px; font-weight: 700; line-height: 1.6; letter-spacing: 0.5px;\"\u003e\n          Additional chromatographic purification and more stringent endotoxin testing\n        \u003c\/p\u003e\n\n        \u003cdiv aria-hidden=\"true\" style=\"height: 1px; margin: 24px 0; background: linear-gradient(90deg, transparent, #d4af37, #f7df88, #d4af37, transparent);\"\u003e\u003c\/div\u003e\n\n        \u003cp style=\"margin: 0; color: #f1f1f1; font-size: 15px; line-height: 1.8;\"\u003e\n          The \u003cstrong style=\"color: #f7df88;\"\u003eULTIMATE PE-22-28 specification\u003c\/strong\u003e\n          includes an additional preparative high-performance liquid chromatography\n          purification stage after the standard purification process, together with a\n          more stringent bacterial endotoxin testing specification for lipopolysaccharides.\n          It provides an optional specification upgrade for laboratories with additional\n          purification and quality-control requirements.\n        \u003c\/p\u003e\n\n        \u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 26px 0;\"\u003e\n\n          \u003cdiv style=\"box-sizing: border-box; flex: 1 1 200px; min-width: 0; padding: 20px; background: linear-gradient(145deg, #232323, #080808); border: 1px solid rgba(212, 175, 55, 0.44); border-radius: 11px;\"\u003e\n            \u003cdiv aria-hidden=\"true\" style=\"width: 34px; height: 3px; margin-bottom: 13px; background: linear-gradient(90deg, #b8860b, #f7df88, #d4af37); border-radius: 3px;\"\u003e\u003c\/div\u003e\n            \u003ch4 style=\"margin: 0 0 9px; color: #f7df88; font-size: 13px; font-weight: 700; line-height: 1.5;\"\u003e\n              Additional Purification\n            \u003c\/h4\u003e\n            \u003cp style=\"margin: 0; color: #dddddd; font-size: 13px; line-height: 1.7;\"\u003e\n              A further preparative high-performance liquid chromatography stage\n              beyond the Regular purification process.\n            \u003c\/p\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv style=\"box-sizing: border-box; flex: 1 1 200px; min-width: 0; padding: 20px; background: linear-gradient(145deg, #232323, #080808); border: 1px solid rgba(212, 175, 55, 0.44); border-radius: 11px;\"\u003e\n            \u003cdiv aria-hidden=\"true\" style=\"width: 34px; height: 3px; margin-bottom: 13px; background: linear-gradient(90deg, #b8860b, #f7df88, #d4af37); border-radius: 3px;\"\u003e\u003c\/div\u003e\n            \u003ch4 style=\"margin: 0 0 9px; color: #f7df88; font-size: 13px; font-weight: 700; line-height: 1.5;\"\u003e\n              More Stringent Endotoxin Testing\n            \u003c\/h4\u003e\n            \u003cp style=\"margin: 0; color: #dddddd; font-size: 13px; line-height: 1.7;\"\u003e\n              Assessed against the ULTIMATE bacterial endotoxin specification using\n              the analytical method and acceptance criteria recorded for the batch.\n            \u003c\/p\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv style=\"box-sizing: border-box; flex: 1 1 200px; min-width: 0; padding: 20px; background: linear-gradient(145deg, #232323, #080808); border: 1px solid rgba(212, 175, 55, 0.44); border-radius: 11px;\"\u003e\n            \u003cdiv aria-hidden=\"true\" style=\"width: 34px; height: 3px; margin-bottom: 13px; background: linear-gradient(90deg, #b8860b, #f7df88, #d4af37); border-radius: 3px;\"\u003e\u003c\/div\u003e\n            \u003ch4 style=\"margin: 0 0 9px; color: #f7df88; font-size: 13px; font-weight: 700; line-height: 1.5;\"\u003e\n              Batch-Specific Assessment\n            \u003c\/h4\u003e\n            \u003cp style=\"margin: 0; color: #dddddd; font-size: 13px; line-height: 1.7;\"\u003e\n              Refer to the completed Certificate of Analysis for the identity,\n              reported purity, endotoxin result and specification of the selected batch.\n            \u003c\/p\u003e\n          \u003c\/div\u003e\n\n        \u003c\/div\u003e\n\n        \u003cdiv style=\"padding: 18px 20px; background-color: rgba(212, 175, 55, 0.05); border: 1px solid rgba(255, 255, 255, 0.08); border-left: 4px solid #d4af37; border-radius: 8px;\"\u003e\n          \u003ch4 style=\"margin: 0 0 8px; color: #f7df88; font-size: 15px; line-height: 1.4;\"\u003e\n            Regular or ULTIMATE?\n          \u003c\/h4\u003e\n          \u003cp style=\"margin: 0; color: #e5e5e5; font-size: 14px; line-height: 1.75;\"\u003e\n            \u003cstrong style=\"color: #ffffff;\"\u003eOur Regular PE-22-28 remains a suitable choice for routine laboratory work\u003c\/strong\u003e\n            where its documented specification meets the requirements of the intended\n            method. Select ULTIMATE where the additional purification stage and more\n            stringent endotoxin specification are required by your laboratory procedure.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cp style=\"margin: 20px 0 0; color: #cccccc; font-size: 12px; line-height: 1.7;\"\u003e\n          \u003cstrong style=\"color: #f7df88;\"\u003eFor research use only.\u003c\/strong\u003e\n          The ULTIMATE designation does not, by itself, establish a numerical purity,\n          an endotoxin limit or sterility. Confirm the relevant specification and results\n          in the batch documentation. Neither grade is intended for human or animal use.\n        \u003c\/p\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003ch3 style=\"margin: 28px 0 14px; color: #00455f; line-height: 1.35;\"\u003e\n    Laboratory Handling and Reconstitution\n  \u003c\/h3\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    The supplied product description states that the lyophilised powder is sterile,\n    finely milled and sieved. Confirm these processing and sterility claims against\n    the relevant manufacturing and batch records before relying on them for a\n    laboratory procedure.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    The supplied product information identifies bacteriostatic water containing 0.9% benzyl alcohol,\n    or a suitable equivalent, as the reconstitution medium. Confirm that the selected medium,\n    concentration and handling conditions are compatible with the exact supplied formulation\n    and your laboratory's validated analytical procedure.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 20px;\"\u003e\n    Follow the product-specific handling, storage and disposal instructions. Research Scientific\n    does not provide advice or recommendations regarding dosage, administration or use in humans\n    or animals.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"margin: 28px 0 14px; color: #00455f; line-height: 1.35;\"\u003e\n    Batch Documentation and Delivery\n  \u003c\/h3\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    \u003cstrong\u003eBatch documentation:\u003c\/strong\u003e\n    Available manufacturer and analytical records are provided where supplied. Match the\n    documentation to the product reference, selected grade and batch number before using it\n    for laboratory quality assessment.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    \u003cstrong\u003eCertificate of Analysis:\u003c\/strong\u003e\n    Review the completed batch certificate for the tests performed, analytical methods,\n    reported results and applicable specifications. Use the document link below or the code\n    provided on the packaging to access the available document.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    \u003cstrong\u003eSafety Data Sheet:\u003c\/strong\u003e\n    Consult the current, product-specific Safety Data Sheet for information supporting\n    laboratory risk assessment, safe handling, storage and disposal.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    \u003cstrong\u003eSupplier documentation:\u003c\/strong\u003e\n    Supplier records are reviewed where supplied. Confirm that the records relate to the\n    actual peptide form, formulation and batch being supplied.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 20px;\"\u003e\n    \u003cstrong\u003eTracked delivery:\u003c\/strong\u003e\n    Securely packaged and dispatched frozen in insulated packaging using a tracked delivery\n    service. Follow the product's storage instructions upon receipt.\n  \u003c\/p\u003e\n\n  \u003chr style=\"border: 0; border-top: 1px solid #dddddd; margin: 26px 0;\"\u003e\n\n  \u003cp style=\"margin: 0; color: #c00000; line-height: 1.65;\"\u003e\n    \u003cstrong\u003eFor Research Use Only\u003c\/strong\u003e\u003cbr\u003e\n    This product is supplied strictly for scientific laboratory research and analytical purposes.\n    Neither the Regular nor the ULTIMATE option is intended for human consumption, human or animal\n    use, clinical use or therapeutic application.\n  \u003c\/p\u003e\n\n  \u003chr style=\"border: 0; border-top: 1px solid #dddddd; margin: 26px 0;\"\u003e\n\n  \u003ch3 style=\"margin: 0 0 14px; color: #00455f; line-height: 1.35;\"\u003e\n    PE-22-28 Product Overview\n  \u003c\/h3\u003e\n\n  \u003cp style=\"margin: 0 0 20px;\"\u003e\n    Research Scientific supplies PE-22-28 as a research-grade peptide for controlled laboratory\n    handling and analytical work. Regular and ULTIMATE options allow laboratories to select\n    the documented specification appropriate to their procedures. Confirm product identity,\n    composition, peptide content and analytical results using the applicable batch documentation.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"margin: 28px 0 14px; color: #00455f; line-height: 1.35;\"\u003e\n    Product Documentation\n  \u003c\/h3\u003e\n\n  \u003c!--\n    Before publication, replace the linked Certificate of Analysis template with a\n    completed batch-specific certificate and reconcile the Safety Data Sheet with\n    the confirmed molecular identity and supplied formulation.\n    Keep the existing PEP091 document references.\n  --\u003e\n\n  \u003cp style=\"margin: 0 0 12px;\"\u003e\n    \u003ca href=\"https:\/\/researchscientific.co.uk\/coa\/PEP091.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color: #00455f; font-weight: 700; text-decoration: underline;\"\u003e\n      View PE-22-28 Certificate of Analysis\n    \u003c\/a\u003e\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0;\"\u003e\n    \u003ca href=\"https:\/\/researchscientific.co.uk\/msds\/PEP091.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color: #00455f; font-weight: 700; text-decoration: underline;\"\u003e\n      View PE-22-28 Safety Data Sheet\n    \u003c\/a\u003e\n  \u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Research Scientific","offers":[{"title":"2mg","offer_id":50256488202578,"sku":"PEP091\/2mg","price":22.19,"currency_code":"GBP","in_stock":false},{"title":"5mg","offer_id":50256488235346,"sku":"PEP091\/5mg","price":32.93,"currency_code":"GBP","in_stock":true},{"title":"10mg","offer_id":50256488268114,"sku":"PEP091\/10mg","price":57.62,"currency_code":"GBP","in_stock":true},{"title":"20mg","offer_id":50256488300882,"sku":"PEP091\/20mg","price":100.85,"currency_code":"GBP","in_stock":true},{"title":"50mg","offer_id":50256488333650,"sku":"PEP091\/50mg","price":176.47,"currency_code":"GBP","in_stock":true},{"title":"5 x 5mg Lab Pack 1","offer_id":51256946164050,"sku":"PEP091 \/5mg x 5 Lab Pack","price":137.21,"currency_code":"GBP","in_stock":true},{"title":"10 x 5mg Lab Pack 2","offer_id":51256950882642,"sku":"PEP091 \/5mg x 10 Lab Pack","price":274.42,"currency_code":"GBP","in_stock":true},{"title":"5 x 10mg Lab Pack 3","offer_id":51256957272402,"sku":"PEP091 \/10mg x 5 Lab Pack","price":240.08,"currency_code":"GBP","in_stock":true},{"title":"10 x 10mg Lab Pack 4","offer_id":51256963989842,"sku":"PEP091 \/10mg x 10 Lab Pack","price":480.17,"currency_code":"GBP","in_stock":true},{"title":"5mg - Ultimate","offer_id":54648322949458,"sku":"PEP091U\/5mg","price":46.1,"currency_code":"GBP","in_stock":true},{"title":"10mg - Ultimate","offer_id":54648322982226,"sku":"PEP091U\/10mg","price":80.67,"currency_code":"GBP","in_stock":true},{"title":"20mg - Ultimate","offer_id":54648323014994,"sku":"PEP091U\/20mg","price":141.19,"currency_code":"GBP","in_stock":true},{"title":"50mg - Ultimate","offer_id":54648323047762,"sku":"PEP091U\/50mg","price":247.06,"currency_code":"GBP","in_stock":true},{"title":"5 x 5mg Lab Pack 5 - Ultimate","offer_id":54648323080530,"sku":"PEP091U\/5mg x 5 Lab Pack","price":192.09,"currency_code":"GBP","in_stock":true},{"title":"10 x 5mg Lab Pack 6 - Ultimate","offer_id":54648323113298,"sku":"PEP091U\/5mg x 10 Lab Pack","price":384.19,"currency_code":"GBP","in_stock":true},{"title":"10 x 10mg Lab Pack 8 - Ultimate","offer_id":54648323146066,"sku":"PEP091U\/10mg x 5 Lab Pack","price":336.11,"currency_code":"GBP","in_stock":true},{"title":"5 x 10mg Lab Pack 7 - Ultimate","offer_id":54648323178834,"sku":"PEP091U\/10mg x 10 Lab Pack","price":672.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/9769\/7362\/files\/nupex-pe-22-28-research-peptide-ultra-pure-peptide-powder.png?v=1767865758","url":"https:\/\/nupex.co.uk\/products\/pe-22-28-research-peptide","provider":"Nupex","version":"1.0","type":"link"}