1. Core Product Specifications

Product Name: Thymalfasin
Synonym: Thymosin Alpha 1, Thymosin α1
CAS No.: 69440-99-9
Peptide Type: Synthetic immunomodulatory polypeptide, thymic hormone peptide, pharmaceutical API intermediate, 28-amino-acid full-length active peptide
Molecular Formula: C???H???N??O??
Molecular Weight: 3108.28 Da
Appearance: White to off-white loose lyophilized powder or porous block, uniform texture, non-caking, ultra-low impurities
Purity: ≥98.0% (HPLC, research grade / pharmaceutical grade)
Form: Standard full-length synthetic peptide, N-terminal acetylated modified structure
Moisture Content: ≤2.0%
Heavy Metals: ≤10ppm
Endotoxin: ≤0.1EU/mg
Residue on Ignition: ≤0.1%
Solubility: Freely soluble in sterile water for injection, normal saline and weakly acidic buffer solutions, forming clear, stable and precipitate-free solutions
Transport Condition: Sealed, dry and light-proof transportation at low temperature or room temperature
Storage Condition: Long-term sealed storage at 2–8℃; strictly avoid high temperature, strong light and moisture. Aliquot the prepared solution and avoid repeated freeze-thaw cycles to prevent immunological activity attenuation
Production Technology: Standard solid-phase peptide synthesis (SPPS), full-length 28-amino-acid precise assembly, N-terminal acetylation modification, multi-stage high-precision HPLC purification, low-temperature vacuum freeze-drying technology
Core Bioactivity: Immune system regulation, promotion of T lymphocyte maturation, enhancement of Th1 cytokine secretion, antiviral immunity improvement, anti-inflammatory response, immune homeostasis balance
Shelf Life: 24 months for sealed dry powder under standard storage conditions
Usage Restriction: For scientific research, immunological mechanism experiments and pharmaceutical intermediate raw material development only. Not for direct human clinical preparation or illegal use