910-99-6
17,21-dihydroxy-16beta-methylpregna-1,4,9(11)-triene-3,20-dione 21-acetate
CAS: 910-99-6
Molecular Formula: C24H30O5
910-99-6 - Names and Identifiers
910-99-6 - Physico-chemical Properties
| Molecular Formula | C24H30O5 |
| Molar Mass | 398.492 |
| Density | 1.22±0.1 g/cm3(Predicted) |
| Melting Point | 205-207 °C |
| Boling Point | 560.0±50.0 °C(Predicted) |
| pKa | 12.48±0.70(Predicted) |
| Physical and Chemical Properties | Crystallization. Melting point 187 ℃. |
910-99-6 - References
| use | betamethasone intermediate. |
| Production method | 16 α,17 α-epoxypregnan-4-ene-3, 11,20-triketone (I. e. 16 α,17 α,-epoxy-11-keto-based progesterone) can be used, condensed with ethylene glycol (ketonated at the 3,20-position), then reduce (11-ketone group and 4-position double bond), (11-position hydroxyl group) to eliminate the introduction of 9(11)-position double bond, (epoxy group) methyl magnesium bromide addition and hydrolysis to generate 17 α-hydroxy -16 β-methylpregnan-4-9 (11)-diene -3,20-diketone, and then (1,2-position) dehydrogenation, (21-position) iodination, (21-position iodine with potassium acetate) replacement to prepare the product. |
Last Update：2024-04-09 21:54:55
Supplier List
Multiple Specifications
Product Name: Vamorolone Impurity 3 Request for quotationCAS: 910-99-6
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Multiple Specifications
Product Name: Vamorolone Impurity 3 Request for quotationCAS: 910-99-6
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
View History