Reichstein's substance S 21-acetate
Also known as: 17α,21-Dihydroxyprogesterone 21-acetate, 21-Acetoxy-17α-hydroxypregn-4-ene-3,20-dione, 11-Deoxycortisol 21-acetate, Cortexolone 21-acetate, Cortodoxon 21-acetate, 17α-Hydroxy-11-deoxycorticosterone 21-acetate, NSC81196
Reichstein's substance S 21-acetate (CAS 640-87-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C23H32O5 and a molecular weight of 388.49700 g/mol. Key properties include a melting point of 233-235ºC, a boiling point of 537.9ºC at 760 mmHg, a density of 1.2g/cm3 and a flash point of 181.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 640-87-9
- Jingsj CID
- J-1162510-8
- Molecular Formula
- C23H32O5
- Molecular Weight
- 388.49700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 233-235ºC |
|---|---|
| Boiling Point | 537.9ºC at 760 mmHg |
| Density | 1.2g/cm3 |
| Flash Point | 181.8ºC |
| Exact Mass | 388.22500 |
| PSA | 80.67000 |
| LogP | 3.38160 |
| Refractive Index | 1.558 |
| Additional Property | Insuluble (8.5E-3 g/L) (25 ºC) |
Frequently Asked Questions
What is the CAS number of Reichstein's substance S 21-acetate?
The CAS number of Reichstein's substance S 21-acetate is 640-87-9.
What are the molecular formula and molecular weight of Reichstein's substance S 21-acetate?
Reichstein's substance S 21-acetate has molecular formula C23H32O5 and molecular weight 388.49700 g/mol.
What are the upstream and downstream products of Reichstein's substance S 21-acetate?
For Reichstein's substance S 21-acetate, Upstream Products: Isopropenyl acetate, Cortodoxone, Potassium acetate; Downstream Products: Androstenedione, Cortodoxone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Reichstein's substance S 21-acetate (CAS 640-87-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1162510-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.