
Thymosin Alpha-1 5mg
This product is for laboratory research use only. Not for human or veterinary use. Not a drug, supplement, or medical device.
Thymosin Alpha-1 5mg is supplied by Bench Grade Peptides as a lyophilized powder in a sealed, lot-numbered vial, for laboratory research use only — not for human or veterinary use.
Its published Certificate of Analysis (lot 00011/0011, analyzed September 20, 2026) is from AV Analytics, a third-party laboratory, and reports 99.79% purity by HPLC; every published lot is listed on the product's COA page. Vials ship at ambient temperature in protective packaging from Florida (Bench Grade Peptides LLC is registered in Dover, Delaware), with storage notes on the lot's certificate.
Under the Bench Grade Guarantee, if an ISO 17025-accredited US laboratory of the buyer's choosing reports a result that disagrees with the published Certificate of Analysis, Bench Grade refunds the order and shipping to the original payment method and pays the lab fee plus $100 separately, by a payment method arranged with the buyer.
Certificate of analysis
Independent laboratory report.
- Report sample
- 10 mg
- Purity (HPLC)
- 99.79%
- Batch
- 00011/0011
- Laboratory
- AV Analytics
- Analyzed
- Sep 20, 2026
This certificate documents the sample and batch shown above. Match the report to your vial label; contact us if you need a different size or lot. All lots for this product.
Overview
28-residue acetylated thymic peptide studied in immune-modulation research.
- Sequence
- N-Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN
- Purity spec
- ≥ 99.0%
- Form
- Lyophilized powder
CAS 62304-98-7 · 3108.3 g/mol · Purity specification: ≥99% by HPLC · $143.00 per selected option
Molecular data
- CAS number
- 62304-98-7
- Mol. formula
- C129H215N33O55
- Mol. weight
- 3108.30 g/mol
- Sequence
- N-Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN
- Purity
- ≥ 99.0%
- Lot number
- Assigned at shipment
Research context
Goldstein et al., Ann NY Acad Sci (2007).
Published research
Primary literature on this compound — trial design, endpoints and limitations. Summaries, not recommendations.
- The efficacy and safety of thymosin alpha-1 for sepsis (TESTS): multicentre, double blinded, randomised, placebo controlled, phase 3 trialBMJ · 2025 · PMID 39814420 · DOI 10.1136/bmj-2024-082583
- Safety and efficacy of Thymosin alpha-1 in the treatment of hepatitis B virus-related acute-on-chronic liver failure: a randomized controlled trialHepatol Int · 2022 · PMID 35616850 · DOI 10.1007/s12072-022-10337-4
- The efficacy of thymosin alpha 1 for severe sepsis (ETASS): a multicenter, single-blind, randomized and controlled trialCrit Care · 2013 · PMID 23327199 · DOI 10.1186/cc11932
- Thymosin alpha 1 is associated with improved cellular immunity and reduced infection rate in severe acute pancreatitis patients in a double-blind randomized control studyInflammation · 2011 · PMID 20549321 · DOI 10.1007/s10753-010-9217-0
- The efficacy and safety of thymosin alpha-1 in Japanese patients with chronic hepatitis B; results from a randomized clinical trialJ Viral Hepat · 2005 · PMID 15850471 · DOI 10.1111/j.1365-2893.2005.00586.x
- Efficacy of thymosin alpha1 in patients with chronic hepatitis B: a randomized, controlled trialLiver · 1996 · PMID 9581695 · DOI 10.1111/j.1600-0676.1996.tb00786.x
Storage & handling
Lyophilized Thymosin Alpha-1 5mg is shipped at ambient temperature in protective packaging. For long-term laboratory storage, keep vials sealed at –20°C, and where your lot's Certificate of Analysis is published, follow its storage notes.
Handling & reference
About Thymosin Alpha-1 5mg
- What is Thymosin Alpha-1 5mg?
- 28-residue acetylated thymic peptide studied in immune-modulation research.
- What is the CAS number for Thymosin Alpha-1 5mg?
- Thymosin Alpha-1 5mg is registered under CAS Registry Number 62304-98-7.
- What is the molecular formula of Thymosin Alpha-1 5mg?
- The molecular formula of Thymosin Alpha-1 5mg is C129H215N33O55, with a molecular weight of 3108.3 g/mol.
- Which laboratory issued the published certificate for Thymosin Alpha-1 5mg?
- The published certificate from AV Analytics records the analysis for the product and batch named in that document. Refer to the report for the tests performed and results; it does not establish testing for every vial size or shipping lot.
Before you order
- Independent report available. Lot 00011/0011 · 99.79% purity by HPLC · AV AnalyticsView the COA →
- UPS Ground ships free on 3 or more vials or on orders of $100 or more, UPS 2-Day at $250 or more and UPS Next Day Air at $600 or more (products after discounts; water does not count). Below those, UPS Ground is $20, UPS 2-Day $15 and UPS Next Day Air $60. Order by 2 PM ET on a business day and it ships the same day.Shipping →
- If a third-party lab disagrees with our COA, full refund plus $100.Guarantee →
- Pay by card.Payments →
- Made in the USA. Synthesized in an ISO-7 cleanroom. Match any laboratory report to the product and lot on your vial.Facility →
- Synthesized at a US facility in an ISO-7 certified cleanroom; filled and finished by a cGMP-certified US manufacturing partner.
- Secure facility with 24-hour CCTV cold-chain storage and time-locked chain-of-custody protocols.
- The published certificate from AV Analytics records the analysis for the product and batch named in that document. Refer to the report for the tests performed and results; it does not establish testing for every vial size or shipping lot.
- Open the published Certificate of Analysis below and match its product, vial size and batch to your vial. Contact us if you need help confirming the applicable report.
- US-domestic shipping only · Free UPS Ground on 3+ vials or $100+ · 2-Day $15, free at $250+.
Reselling, or buying at wholesale volume? See wholesale and white-label peptide supply.

