

Pregn-4-ene-3,20-dione,21-(acetyloxy)-11,17-dihydroxy-,(11β)-
Cortisol 21-acetate [50-03-3]
质量标准:
美国药典25版
鉴别:符合规定
A: 红外吸收
B: 紫外吸收
比旋度:+158°~ +165°
干燥失重 ≤ 1.0 %
灼烧残渣:可以忽略
层析杂质:
单个杂质≤1.0%
总杂质≤2.0%
含量: 97%~102%
Quality standard:
USP25
Identification:
A: Infrared Absorption
B: Ultraviolet Absorption
Specific rotation :between +158°and +165°
Loss on drying:≤ 1.0 %
Residue on ignition: negligible from 100mg
Chromatographic Purity:
Individual purity≤1.0%
Total purity≤2.0%
Assay: 97%~102%