1. Core Product Specifications

Product Name: Thymulin
Alias: FTS, Serum Thymic Factor
CAS No.: 63958-90-7 (Free peptide); 125117-65-9 (Thymulin acetate)
Chemical Name: Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn
Amino Acid Sequence: Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn
Peptide Classification: Naturally homologous linear non-glycosylated thymic hormone peptide with zinc-dependent bioactivity
Molecular Formula: C??H??N??O??
Molecular Weight: 858.9 g/mol
Appearance: White to off-white lyophilized crystalline powder, loose texture, non-caking, odorless with extremely low impurities
Purity: ≥98.0% (HPLC, research grade)
Activity Characteristics: Strict zinc ion (Zn2?) dependent activity; inactive in zinc-free state
Moisture Content: ≤2.0%
Heavy Metals: ≤10ppm
Endotoxin: ≤0.1EU/mg
Residue on Ignition: ≤0.1%
Solubility: Freely soluble in pure water, normal saline and various aqueous buffer systems, forming clear, stable and precipitate-free solutions
Transport Condition: Room temperature transportation with light protection
Storage Condition: Long-term storage of dry powder at -20℃ in sealed, dry and dark environment; aliquot and store liquid solutions at -20℃, avoid repeated freeze-thaw cycles; biological experiments require Zn2? supplementation for effective activation
Production Technology: Standard solid-phase peptide synthesis (SPPS), full-length sequence precise assembly, multi-stage preparative HPLC purification, low-temperature vacuum freeze-drying technology
Core Bioactivity: Bidirectional immune regulation, neuroendocrine modulation, anti-inflammation and analgesia, neuroprotection, anti-diabetic and organ protective effects
Natural Source: Secreted by subcapsular and medullary epithelial cells of the human thymus
Shelf Life: 24 months for sealed dry powder stored at -20℃ under standard conditions
Usage Restriction: For scientific research and preclinical drug development only