5-ALPHA-PREGNANE
- CAS NO.：641-85-0
- Empirical Formula: C21H36
- Molecular Weight: 288.51
- MDL number: MFCD00199657
- EINECS: 211-378-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:12:54
What is 5-ALPHA-PREGNANE?
The Uses of 5-ALPHA-PREGNANE
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.]
Properties of 5-ALPHA-PREGNANE
| Melting point: | 84-85° |
| Boiling point: | 365.73°C (rough estimate) |
| alpha | D19 +18.4° (c = 1.69 in chloroform) |
| Density | 0.9415 (estimate) |
| refractive index | 1.7640 (estimate) |
| CAS DataBase Reference | 641-85-0 |
Safety information for 5-ALPHA-PREGNANE
Computed Descriptors for 5-ALPHA-PREGNANE
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