阿糖胞苷 Molecular formula: C9H13N3O5 Molecular weight: 243.22 CAS No.: 147-94-4 Specifications Description: White or almost white crystalline powder A-Infrared Absorption: complies with USP26 B-The retention time: complies with USP26 Specific rotation: +154 - +160° Loss on drying: ≤1.0% Residue on ignition: ≤0.5% Assay: 98.0 - 102.0% Complies with USP26 Storage: Keep dry, stable at room temperature.