| Identification | Back Directory | [Name]
5-ALPHA-PREGNANE | [CAS]
641-85-0 | [Synonyms]
Pregnane
5α-Pregnane
ALLOPREGNANE
5ALPHA-PREGNAN
5-ALPHA-PREGNANE
Pregnane, (5alpha)- | [EINECS(EC#)]
211-378-3 | [Molecular Formula]
C21H36 | [MDL Number]
MFCD00199657 | [MOL File]
641-85-0.mol | [Molecular Weight]
288.51 |
| Chemical Properties | Back Directory | [Melting point ]
84-85° | [alpha ]
D19 +18.4° (c = 1.69 in chloroform) | [Boiling point ]
365.73°C (rough estimate) | [density ]
0.9415 (estimate) | [refractive index ]
1.7640 (estimate) | [CAS DataBase Reference]
641-85-0 |
| Hazard Information | Back Directory | [Uses]
Pregnane is the steroid fundamental parent. A parent of the progesterone. | [Definition]
ChEBI:5alpha-pregnane is a pregnane and a C21-steroid. | [Purification Methods]
Recrystallise 5-pregnane several times from Me2CO. The melting point is lowered (e.g. to 50-71o) if it is contaminated with the 5-isomer. [Butenandt et al. Chem Ber 6 4 2529 1931, Steiger & Reichstein Helv Chim Acta 21 161 1938, Beilstein 5 III 1120, 1121, 1125.] |
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