www.154.net

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%