What Is Pregnenolone?
Pregnenolone is an important intermediate for the synthesis of progesterone, finasteride, etc., and is used in the synthesis of steroidal intermediates and steroidal drugs.
Pregnenolone
- Chinese name
- Pregnenolone
- Foreign name
- Pregnenolone
- CAS number
- : 145-13-1
- Molecular formula:
- C21H32O2
- Pregnenolone is an important intermediate for the synthesis of progesterone, finasteride, etc., and is used in the synthesis of steroidal intermediates and steroidal drugs.
- Chinese alias: 5-pregneno-3-ol-20-one; 3b-hydroxy-pregn-5--5--20
- White or almost white crystalline powder, odorless
- Melting point: 185-193 ° C
- Optical rotation: + 28 ° (in ethanol)
- Security level: 22-24 / 25
- Insoluble in water, soluble in organic solvents such as ethanol, difficult to dissolve in water, and quite difficult to dissolve
- Colorless needle-like crystals (recrystallized from dilute ethanol). Is a steroid. Diosgenin, cholesterol, stigmasterol, dehydroepiandrosterone and other steroids are synthesized. Used as an intermediate for the synthesis of sex hormone steroids and adrenal corticosteroids other than progesterone. Its derivative acetate: colorless needle-like crystal, melting point 149-151 ° C. Optical rotation + 22 ° ± 2 ° (in ethanol).