{"product_id":"tb-500","title":"TB-500","description":"\u003cp\u003eTB-500 is the name commonly used for synthetic thymosin β4, a 43-amino-acid peptide found throughout mammalian tissue. The batch we supply is the full thymosin β4 sequence, as confirmed on its certificate of analysis, and comes as a lyophilised powder in 5mg or 10mg vials.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompound:\u003c\/strong\u003e Thymosin β4 (TB-500)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 43 amino acids, N-terminally acetylated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C212H350N56O78S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 4963.49 g\/mol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 77591-33-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAppearance:\u003c\/strong\u003e White lyophilised powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack:\u003c\/strong\u003e 5mg or 10mg in a sealed glass vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store at 2–8°C, or at −20°C for long-term storage, sealed, dry and away from light\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eResearch context\u003c\/h3\u003e\u003cp\u003eThymosin β4 is a major actin-sequestering protein, and is studied in research on cell migration, actin dynamics and wound-healing models. It has been investigated in laboratory and animal studies of tissue regeneration, including cardiac and corneal tissue. Most published work is preclinical. Also available as a \u003ca href=\"\/products\/bpc-157-tb-500-blend\"\u003eBPC-157 \/ TB-500 blend\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eQuality and testing\u003c\/h3\u003e\u003cp\u003eEach batch comes with the manufacturer's certificate of analysis. This batch (certificate 026-T81-TSX) tested at 99.40% purity by HPLC, with identity confirmed by mass spectrometry, a peptide content of 85.38% and a mass balance of 98.19%. The full lab results are shown below, with the certificate to download.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eOrders ship by Royal Mail: Tracked 48 (£3.99), Tracked 24 (£4.99) or Special Delivery guaranteed by 1pm (£10.99), with free Tracked 48 on UK orders of £100 or more. Mix and match any peptides for bulk savings: 10% off 3 vials, 15% off 5 and 20% off 10.\u003c\/p\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat purity is this batch?\u003c\/strong\u003e\u003cbr\u003eThe current batch of TB-500 tested at 99.40% by HPLC, with identity confirmed by mass spectrometry. The full certificate of analysis, number 026-T81-TSX, is shown below and can be downloaded.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a fragment or full thymosin β4?\u003c\/strong\u003e\u003cbr\u003eIt is the full 43-amino-acid thymosin β4 sequence. The name TB-500 is sometimes used for shorter fragments, so check the certificate: ours shows the full sequence and a molecular weight of 4963.49 g\/mol.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow should it be stored?\u003c\/strong\u003e\u003cbr\u003eKeep the sealed vial at 2–8°C for short-term storage or at −20°C for long-term storage, away from light and moisture. Let a cold vial reach room temperature before opening it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this the same as TB500?\u003c\/strong\u003e\u003cbr\u003eYes. TB-500 is also written or searched for as TB500, TB 500, TB-4, Tβ4 or thymosin beta-4. All of these names refer to this thymosin β4 peptide.\u003c\/p\u003e\u003cp\u003eSee more in \u003ca href=\"\/collections\/tissue-repair-research-peptides\"\u003etissue-repair research peptides\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e Not a medicine. Not for human or veterinary use, and not for use in food, drugs, cosmetics or household products. Sold to qualified researchers who confirm research use at checkout.\u003c\/p\u003e","brand":"Absolute Peptides","offers":[{"title":"5mg","offer_id":55617947205959,"sku":"AP-TB500-5","price":24.99,"currency_code":"GBP","in_stock":true},{"title":"10mg","offer_id":55329807466823,"sku":"AP-TB500-10","price":39.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/3806\/2919\/files\/absolute-peptides-tb-500-10mg.png?v=1791987936","url":"https:\/\/absolutepeptides.uk\/products\/tb-500","provider":"Absolute Peptides","version":"1.0","type":"link"}