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ChemicalBook >> CAS DataBase List >> 9,11β-Epoxy-17-hydroxy-16β-methyl-3,20-dioxo-9β-pregna-1,4-diene-21-yl Acetate

9,11β-Epoxy-17-hydroxy-16β-methyl-3,20-dioxo-9β-pregna-1,4-diene-21-yl Acetate

9,11β-Epoxy-17-hydroxy-16β-methyl-3,20-dioxo-9β-pregna-1,4-diene-21-yl Acetate price.
  • $171 - $1165
  • Product name: 9,11β-Epoxy-17-hydroxy-16β-methyl-3,20-dioxo-9β-pregna-1,4-diene-21-yl Acetate
  • CAS: 912-38-9
  • MF: C24H30O6
  • MW: 414.4914
  • EINECS:213-012-8
  • MDL Number:MFCD28359078
  • Synonyms:(9β)-9,11β-Epoxy-16β-methyl-17,21-dihydroxypregna-1,4-diene-3,20-dione 21-acetate;21-Acetyloxy-9β,11β-epoxy-17-hydroxy-16β-methylpregna-1,4-diene-3,20-dione;beta,11beta-Epoxy-17,21-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-acetate;Betamethasone Acetate EP Impurity D;9beta,11beta-epoxy-17,21-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-acetate;9,11-Epoxy-17,21-dihydroxy-16-methylpregna-1,4-diene-3,20-dione 21-acetate;Betamethasone Impurity 18;Betamethasone Impurity 21（Betamethasone Acetate EP Impurity D）
Price11 Properties Safety Information Description
11 prices
Selected condition：
Brand
  • aablocks
  • American Custom Chemicals Corporation
  • ChemScene
  • TRC
  • Usbiological
Package
  • 1mg
  • 5MG
  • 50mg
  • 100mg
  • 200mg
  • 1g
  • Manufactureraablocks
  • Product numberAA00GW8V
  • Product description9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95%
  • Packaging50mg
  • Price$171
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00GW8V
  • Product description9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95%
  • Packaging100mg
  • Price$228
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00GW8V
  • Product description9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95%
  • Packaging200mg
  • Price$341
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00GW8V
  • Product description9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95%
  • Packaging1g
  • Price$852
  • Updated2026-05-28
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberSHG0007045
  • Product description9-BETA,11-BETA-EPOXY-17,21-DIHYDROXY-16-BETA-METHYLPREGNA-1,4-DIENE-3,20-DIONE-21-ACETATE 95.00%
  • Packaging5MG
  • Price$502.79
  • Updated2021-12-16
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0854708
  • Product descriptionBetamethasone acetate impurity 2 ≥95%
  • Packaging200mg
  • Price$426
  • Updated2026-06-04
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0854708
  • Product descriptionBetamethasone acetate impurity 2 ≥95%
  • Packaging100mg
  • Price$284
  • Updated2026-06-04
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0854708
  • Product descriptionBetamethasone acetate impurity 2 ≥95%
  • Packaging50mg
  • Price$213
  • Updated2026-06-04
  • Buy
  • ManufacturerChemScene
  • Product numberCS-0854708
  • Product descriptionBetamethasone acetate impurity 2 ≥95%
  • Packaging1g
  • Price$1065
  • Updated2026-06-04
  • Buy
  • ManufacturerTRC
  • Product numberE589185
  • Product description9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione21-Acetate
  • Packaging1g
  • Price$1165
  • Updated2021-12-16
  • Buy
  • ManufacturerUsbiological
  • Product number011215
  • Product description9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate
  • Packaging1mg
  • Price$418
  • Updated2026-06-03
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00GW8V 9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95% 50mg $171 2026-05-28 Buy
aablocks AA00GW8V 9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95% 100mg $228 2026-05-28 Buy
aablocks AA00GW8V 9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95% 200mg $341 2026-05-28 Buy
aablocks AA00GW8V 9b,11b-Epoxy-17,21-dihydroxy-16b-methylpregna-1,4-diene-3,20-dione 21-Acetate 95% 1g $852 2026-05-28 Buy
American Custom Chemicals Corporation SHG0007045 9-BETA,11-BETA-EPOXY-17,21-DIHYDROXY-16-BETA-METHYLPREGNA-1,4-DIENE-3,20-DIONE-21-ACETATE 95.00% 5MG $502.79 2021-12-16 Buy
ChemScene CS-0854708 Betamethasone acetate impurity 2 ≥95% 200mg $426 2026-06-04 Buy
ChemScene CS-0854708 Betamethasone acetate impurity 2 ≥95% 100mg $284 2026-06-04 Buy
ChemScene CS-0854708 Betamethasone acetate impurity 2 ≥95% 50mg $213 2026-06-04 Buy
ChemScene CS-0854708 Betamethasone acetate impurity 2 ≥95% 1g $1065 2026-06-04 Buy
TRC E589185 9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione21-Acetate 1g $1165 2021-12-16 Buy
Usbiological 011215 9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate 1mg $418 2026-06-03 Buy

Properties

Melting point :198-203°C
Boiling point :575.1±50.0 °C(Predicted)
Density :1.29±0.1 g/cm3(Predicted)
storage temp. :-20°C Freezer
solubility :Chloroform (Slightly), Dioxane (Slightly), DMSO (Slightly), Methanol (Slightly)
form :Solid
pka :12.51±0.70(Predicted)
color :White

Safety Information

Symbol(GHS): Health Hazard (GHS08)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P314 Get medical advice/attention if you feel unwell.
P501 Dispose of contents/container to..…

Description

9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate is an intermediate in the production of Betamethasone (B327000), which is a glucocorticoid used as an anti-inflammatory agent.

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Suppliers and manufacturers

Hunan Yuanye Pharmaceutical Co., Ltd.
Wuhan Jingkang en Biomedical Technology Co., Ltd
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
Pure Research Chemicals
Sinco Pharmachem (ShenZhen) R&D Co., Ltd. J & K SCIENTIFIC LTD. Chemsky（shanghai）International Co.,Ltd. ChemCell Biomedicine Co.,Ltd. Shenzhen Polymeri Biochemical Technology Co., Ltd. Guangzhou Dreampharm Biotechnology Co., Ltd.