Type XVII collagen (COL17), as a key transmembrane collagen, is not merely present in the dermis; rather, it serves as the core anchoring molecule connecting epidermal basal cells to the basement membrane, directly determining the adhesion, differentiation, and renewal capacity of epidermal stem cells. This product is expressed and purified from yeast using genetic recombination technology and is provided in lyophilized powder form. Recombinant humanized collagen, due to its excellent physical properties and biological characteristics, has extensive applications in the fields of biomedicine and cosmetics. Product Information Product Information. Catalog Number Size Recombinant Human Type III Collagen(55.9Kd) 92354ES03 1 g 92354ES10 10 g Performance Parameters Species Human Tag C-His Expression System Yeast Molecular Weight 10 kDa Purity ≥ 95%, SDS-PAGE Appearance Lyophilized powder Endotoxin < 0.5 EU/mg Microbiology Total bacterial count < 5 cfu/g CAS Number 9064-67-9 Sterility Test Escherichia coli: Not detected; Staphylococcus aureus: Not detected; Pseudomonas aeruginosa: Not detected; Microbial limit: Total bacterial count < 5 cfu/g Reconstitution Reconstitute in sterile deionized water. Storage Store at -25~ -15°C. Valid for 1 year upon receipt. After reconstitution, store at -20 ~ -80°C for 1 month. Instructions Reconstitute with sterile deionized water. Notes 1. This product is for research use only. 2. For your safety and health, please wear a lab coat and disposable gloves during operation. Product Features This product is animal-free, featuring high purity, excellent batch-to-batch consistency, and low endotoxin levels. Application Examples Total Residual Heavy Metals (as Pb): < 10 ppm Specific Impurities: Arsenic (As): < 2 ppm Mercury (Hg): < 2 ppm Lead (Pb): < 5 ppm Chromium (Cr): < 5 ppm Cadmium (Cd): < 2 ppm Documents: Manuals 92354_Manual_HB20260408