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ChemicalBook >> CAS DataBase List >> 21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione

21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione

21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione price.
  • $65 - $2200
  • Product name: 21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • CAS: 51333-05-2
  • MF: C27H36O7
  • MW: 472.57
  • EINECS:
  • MDL Number:MFCD09839820
  • Synonyms:(11β,16α)-21-(Acetyloxy)-16,17-[butylidenebis(oxy)]-11-hydroxy-pregna-1,4-diene-3,20-dione;21-(Acetoxy)-16α,17α-(butylidenedioxy)-11β-hydroxypregna-1,4diene-3,20-dione-d8;21-Acetyloxy Budesonide-d8;16α,17-[(1RS)-butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4-diene-3,20-dione-21-acetate;Budesonide Impurity 11(Budesonide EP Impurity K);Budesonide Impurity A (21-acetate of Budes.);Budesonide iMpurit K;Budesonide EP Impurity K (Mixture of Diastereomers)
Price19 Properties Safety Information Description
19 prices
Selected condition：
Brand
  • aablocks
  • American Custom Chemicals Corporation
  • Biosynth
  • Medical Isotopes, Inc.
  • TRC
  • Usbiological
Package
  • 1mg
  • 2mg
  • 5MG
  • 10mg
  • 25mg
  • 50mg
  • 100mg
  • 250mg
  • Manufactureraablocks
  • Product numberAA00DD9M
  • Product description21-Acetoxy-11Beta-hydroxy-16Alpha,17Alpha-propylmethylenedioxpregna-1,4-diene-3,20-dione >95%(HPLC)
  • Packaging1mg
  • Price$196
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DD9M
  • Product description21-Acetoxy-11Beta-hydroxy-16Alpha,17Alpha-propylmethylenedioxpregna-1,4-diene-3,20-dione >95%(HPLC)
  • Packaging10mg
  • Price$305
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA00DD9M
  • Product description21-Acetoxy-11Beta-hydroxy-16Alpha,17Alpha-propylmethylenedioxpregna-1,4-diene-3,20-dione >95%(HPLC)
  • Packaging100mg
  • Price$1460
  • Updated2026-05-28
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberRDL0015233
  • Product description21-ACETYLOXY BUDESONIDE-D8 95.00%
  • Packaging5MG
  • Price$495.45
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging250mg
  • Price$625
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging10mg
  • Price$649
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging25mg
  • Price$1298
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging100mg
  • Price$320
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging5mg
  • Price$389.4
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging50mg
  • Price$200
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging1mg
  • Price$250
  • Updated2026-06-04
  • Buy
  • ManufacturerBiosynth
  • Product numberFA16965
  • Product description21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging2mg
  • Price$259.6
  • Updated2026-06-04
  • Buy
  • ManufacturerMedical Isotopes, Inc.
  • Product numberD67576
  • Product description21-AcetyloxyBudesonide-d8
  • Packaging10mg
  • Price$2200
  • Updated2021-12-16
  • Buy
  • ManufacturerTRC
  • Product numberA165740
  • Product description21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione
  • Packaging1mg
  • Price$65
  • Updated2021-12-16
  • Buy
  • ManufacturerTRC
  • Product numberTRC-A164487-1MG
  • Product description21-Acetyloxy Budesonide-d8
  • Packaging1mg
  • Price$223
  • Updated2026-06-03
  • Buy
  • ManufacturerTRC
  • Product numberA164487
  • Product description21-AcetyloxyBudesonide-d8
  • Packaging10mg
  • Price$1320
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00DD9M 21-Acetoxy-11Beta-hydroxy-16Alpha,17Alpha-propylmethylenedioxpregna-1,4-diene-3,20-dione >95%(HPLC) 1mg $196 2026-05-28 Buy
aablocks AA00DD9M 21-Acetoxy-11Beta-hydroxy-16Alpha,17Alpha-propylmethylenedioxpregna-1,4-diene-3,20-dione >95%(HPLC) 10mg $305 2026-05-28 Buy
aablocks AA00DD9M 21-Acetoxy-11Beta-hydroxy-16Alpha,17Alpha-propylmethylenedioxpregna-1,4-diene-3,20-dione >95%(HPLC) 100mg $1460 2026-05-28 Buy
American Custom Chemicals Corporation RDL0015233 21-ACETYLOXY BUDESONIDE-D8 95.00% 5MG $495.45 2021-12-16 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 250mg $625 2021-12-16 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 10mg $649 2026-06-04 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 25mg $1298 2026-06-04 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 100mg $320 2021-12-16 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 5mg $389.4 2026-06-04 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 50mg $200 2021-12-16 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 1mg $250 2026-06-04 Buy
Biosynth FA16965 21-Acetoxy-11b-hydroxy-16a,17a-propylmethylenedioxpregna-1,4-diene-3,20-dione 2mg $259.6 2026-06-04 Buy
Medical Isotopes, Inc. D67576 21-AcetyloxyBudesonide-d8 10mg $2200 2021-12-16 Buy
TRC A165740 21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione 1mg $65 2021-12-16 Buy
TRC TRC-A164487-1MG 21-Acetyloxy Budesonide-d8 1mg $223 2026-06-03 Buy
TRC A164487 21-AcetyloxyBudesonide-d8 10mg $1320 2021-12-16 Buy
Next Last

Properties

Melting point :156-158°C (dec.)
Boiling point :611.4±55.0 °C(Predicted)
Density :1.26±0.1 g/cm3(Predicted)
storage temp. :Refrigerator
solubility :Chloroform (Slightly), Methanol (Slightly)
pka :14.26±0.70(Predicted)
form :Solid
color :White

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
Precautionary statements:

Description

21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione (Budesonide EP Impurity K) is an impurity of Budesonide (B689460), a non-halogenated glucocorticoid intended for the local treatment of lung disease.

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16α,17-[(1RS)-Butylidenebis(oxy)]-11β-hydroxy-17-(hydroxyMethyl)-D-hoMoandrosta-1,4-diene-3,17a-dione (Mixture of DiastereoMers) Budesonide 14,15-Dehydro Budesonide 21-Dehydro Budesonide Di-Norbudesonide (Mixture of DiastereoMers) Desonide BUDESONIDE-D8 11a,16b,17,21-Tetrahydroxy-pregna-1,4-diene-3,20-dione (16α)-16,17-[Butylidenebis(oxy)]-21-hydroxypregna-1,4-diene-3,11,20-trione 1,2-Dehydrobudesonide Budesonide-d6

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Suppliers and manufacturers

Shanghai Zerui Biotechnology Co., Ltd. LangFangshi Zekang Pharma Tech CO.,Itd. J & K SCIENTIFIC LTD. Chemsky（shanghai）International Co.,Ltd. S.Z. PhyStandard Bio-Tech. Co., Ltd. Quality Control Solutions Ltd. Shanghai Kewel Chemical Co., Ltd. Nanjing XiZe Biotechnology CO., Ltd. BOC Sciences Shijiazhuang yaoBo Pharmaceutical Co., Ltd.