1879-77-2
1879-77-2 structure
- Name: 21-Deoxy Betamethasone
- Chemical Name: 16β-methyl-9α-fluoro-11β,17α-dihydroxy-1,4-pregnadiene-3,20-dione
- CAS Number: 1879-77-2
- Molecular Formula: C22H29FO4
- Molecular Weight: 376.462
- Create Date: 2016-11-26 15:59:28
- Modify Date: 2026-08-14 19:04:31
| Name | 16β-methyl-9α-fluoro-11β,17α-dihydroxy-1,4-pregnadiene-3,20-dione |
|---|---|
| Synonyms |
9-Fluoro-11β,17-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione
16β-Methyl-11β,17-dihydroxy-9-fluoro-5α-pregnane-1,4-diene-3,20-dione (8S,9R,10S,11S,13S,14S,16S,17R)-17-acetyl-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one βmethasone Valerate Impurity B Betamethasone Valerate Impurity B (11β,16β)-9-Fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione 9-Fluoro-11b,17-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione Betamethasone Valerate Impurity B (21-Deoxy Betamethasone) 9-Fluoro-16-methylpregna-1,4-diene-11,17-diol-3,20-dione Pregna-1,4-diene-3,20-dione, 9-fluoro-11,17-dihydroxy-16-methyl-, (11β,16β) Betamethasone Valerate impurity 1/Betamethasone Valerate Impurity B/Doxybetasol/21-Deoxy Betamethasone doxibetasol gr 2/443 (8S,9R,10S,11S,13S,14S,16S,17R)-17-ethanoyl-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one Doxybetasol Doxibetasol [INN] 9-Fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione 1,4-pregnadien-9alpha-fluoro-16alpha-methyl-11beta,17,diol-3,20-dione |
| Density | 1.3±0.1 g/cm3 |
|---|---|
| Boiling Point | 527.1±50.0 °C at 760 mmHg |
| Molecular Formula | C22H29FO4 |
| Molecular Weight | 376.462 |
| Flash Point | 272.6±30.1 °C |
| Exact Mass | 376.204987 |
| PSA | 74.60000 |
| LogP | 2.02 |
| Vapour Pressure | 0.0±3.1 mmHg at 25°C |
| Index of Refraction | 1.574 |
| Precursor 3 | |
|---|---|
| DownStream 2 | |
