Alternative name: COL1. MW: 235kDa, 215kDa, 130kDa, 115kDa. Concentration: 5mg/ml. Endotoxin content: <100 EU/mg purified protein (LAL test). Purity: ≥90% (SDS-PAGE). Formulation: Sterile liquid. In 0.02N acetic acid. Appearance: Hazy viscous liquid. Source: Isolated from rat tail tendons. Handling: Keep sterile. Do not freeze. Long Term Storage: +4°C