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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: 414.49
  • 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

J & K SCIENTIFIC LTD. Chemsky（shanghai）International Co.,Ltd. ChemCell Biomedicine Co.,Ltd. Shenzhen Polymeri Biochemical Technology Co., Ltd. Guangzhou Dreampharm Biotechnology Co., Ltd. Hefei fuya biotechnology co. LTD Cato Research Chemicals Inc. Meng Cheng Technology (Shanghai) Co., LTD SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD LGC Science (Shanghai) Ltd.