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C2755 SIGMA
Cortisone
≥98%
Synonym: 17α,21-Dihydroxy-4-pregnene-3,11,20-trione, 17α-Hydroxy-11-dehydrocorticosterone, 4-Pregnene-17α,21-diol-3,11,20-trione, Kendall’s Compound E, Reichstein’s Substance Fa
CAS Number 53-06-5
Empirical Formula (Hill Notation) C21H28O5
Molecular Weight 360.44
白色结晶性粉末。系肾上腺的分泌物。溶于乙醇、丙酮和冷甲醇，极少溶于乙醚、苯和氯仿，微溶于水(25℃，28mg/100ml)，水溶液呈中性。在浓硫酸中呈深红色溶液，并有深绿色荧光。加热能还原本尼迪特(Benedict's)溶液。熔点220～224℃(部分分解)。比旋光度［α］25D＋209°(c=1 |