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Thymosin Alpha 1

Thymosin Alpha 1

Price range: $90.00 through $130.00

Thymosin Alpha 1 is a 28-amino-acid peptide with the molecular formula C129H215N33O55 and a molecular weight of 3,108.32 g/mol (CAS 62304-98-7). First isolated in 1977 from a calf thymus extract called Thymosin Fraction 5, it is also known as thymalfasin. The peptide has an acetyl group attached to its N-terminus and begins with serine. It contains no cysteine residues and no disulfide bonds, giving it a straightforward linear structure. Thymosin Alpha 1 is classified as a thymic peptide, part of a family of compounds originally derived from the thymus gland. It is supplied as a white to off-white lyophilized powder, soluble in water, and requires refrigeration when reconstituted. This product is strictly for research purposes only.

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Proudly Made in the USA
USA manufactured · USA tested · Ships from Gilbert, AZ
USA Manufactured
USA Lab Tested
Ships from Gilbert, AZ
✓ THIRD-PARTY LAB TESTED

Certificate of Analysis

Independent laboratory testing confirms purity and composition

99.496%
Purity
B0526
Batch
March 2026
Date
View Certificate →

Overview

Thymosin Alpha 1 is a 28-amino-acid peptide with the molecular formula C129H215N33O55 and a molecular weight of 3,108.32 g/mol. It was first isolated in 1977 from Thymosin Fraction 5, a partially purified extract of calf thymus tissue. The compound is identified by CAS number 62304-98-7 and is also known by the name thymalfasin.

Structurally, Thymosin Alpha 1 is an acetylated peptide — meaning it has an acetyl group attached to its N-terminus (the starting end of the amino acid chain), beginning with serine. It lacks cysteine residues and therefore contains no disulfide bonds, which contributes to its relatively straightforward linear structure. The peptide is classified as a thymic peptide, belonging to a family of compounds originally derived from the thymus gland, an organ located behind the breastbone. It is supplied as a white to off-white lyophilized powder, soluble in water, and requires refrigeration when reconstituted.

This product is strictly for research purposes only.

PubChem Reference: View compound profile on NIH PubChem

This product is strictly for research purposes only. Not approved for human or animal use.

Key Characteristics

MOLECULAR PROFILE

Formula: C129H215N33O55

Weight: 3108.32 g/mol

CAS: 62304-98-7

Structure: 28 amino acid peptide

PHYSICAL PROPERTIES

Form: White to off-white lyophilized powder

Solubility: Water-soluble

Storage: Requires refrigeration when reconstituted

Also Known As: Thymalfasin

Weight 0.08 lbs
Dimensions 0.87 × 1.18 × 0.87 in
Size

5mg, 10mg
SKU: OATH-THYMOSIN-ALPHA-1 Categories: , Tag:
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