ChemicalBook >> CAS DataBase List >>(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione

(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione

CAS No.
51372-28-2
Chemical Name:
(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione
Synonyms
S-22Budesonide;Budesonide-22S;(22S)-Budesonide;Budenoside Impurity 3;Budesonide (22S)-Isomer;Budesonide USP Impurity C(S);(22S)-Budesonide (85:15 = S:R);Budesonide Impurity 25 ((22S)-Budesonide);(S)-16α,17-(butylidenedioxy)-11β,21-dihydroxypregna-1,4-diene-3,20-dione;16α,17-[(S)-Butylidenebisoxy]-11β,21-dihydroxypregna-1,4-diene-3,20-dione
CBNumber:
CB1929885
Molecular Formula:
C25H34O6
Molecular Weight:
430.53
MDL Number:
MFCD00871452
MOL File:
51372-28-2.mol
MSDS File:
SDS
Last updated:2026-05-27 23:51:19

(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione Properties

Melting point 196-198°C
Boiling point 599.7±50.0 °C(Predicted)
Density 1.27±0.1 g/cm3(Predicted)
storage temp. -20°C Freezer
solubility Chloroform (Slightly), Dichloromethane, Methanol (Slightly)
form Solid
pka 12.87±0.10(Predicted)
color White to Off-White
FDA UNII 168L5HT37P

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P280-P305+P351+P338

(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC TRC-B689505-5MG (22S)-Budesonide 51372-28-2 5mg $134 2026-06-03 Buy
TRC TRC-B689505-25MG (22S)-Budesonide 51372-28-2 25mg $427 2026-06-03 Buy
TRC TRC-B689505-10MG (22S)-Budesonide 51372-28-2 10mg $211 2026-06-03 Buy
Usbiological 005052 (22S)-Budesonide (85:15 = S:R) 51372-28-2 500ug $496 2026-06-03 Buy
ChemScene CS-0787785 Budesonide impurity 87 ≥98% 51372-28-2 20mg $521 2026-06-04 Buy
Product number Packaging Price Buy
TRC-B689505-5MG 5mg $134 Buy
TRC-B689505-25MG 25mg $427 Buy
TRC-B689505-10MG 10mg $211 Buy
005052 500ug $496 Buy
CS-0787785 20mg $521 Buy

(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione Chemical Properties, Uses, Production

Chemical Properties

Off-White Solid

Uses

Budesonide (B689490) epimer S. Budesonide 22R epimer is more active than 22S epimer.

brand name

Entocort (AstraZeneca); Pulmicort (AstraZeneca); Rhinocort (AstraZeneca).

(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 40)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Shanghai Kewel Chemical Co., Ltd. 021-64609169 18901607656 greensnown@163.com China 9883 50
BOC Sciences 16314854226 info@bocsci.com United States 9909 65
Shenzhen Polymeri Biochemical Technology Co., Ltd. +86-400-002-6226 sales@rrkchem.com China 57336 58
Nanjing wangzhixing Pharmaceutical Technology Co., Ltd 18569809817 2208093734@qq.com China 3989 58
Wuxi Minglu Medicine technology Co.,Ltd. 0510-88726693 3204601684@qq.com China 2210 58
SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD 0755-83725350 13380397412 3001280422@qq.com China 10000 58
Hubei Xinyang Medical Technology Co., Ltd 15347293736 2853117764@yongstandards.com China 9999 58

51372-28-2 ((S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione) Related Search:

(S)-16alpha,17-(butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione Budesonide-22S S-22Budesonide (22S)-Budesonide 16α,17-[(S)-Butylidenebisoxy]-11β,21-dihydroxypregna-1,4-diene-3,20-dione (22S)-Budesonide (85:15 = S:R) Budesonide (22S)-Isomer Budenoside Impurity 3 Pregna-1,4-diene-3,20-dione, 16,17-[(1S)-butylidenebis(oxy)]-11,21-dihydroxy-, (11β,16α)- Budesonide Impurity 25 ((22S)-Budesonide) (6aR,6bS,7S,8aS,8bS,10S,11aR,12aS,12bS)-7-hydroxy-8b-(2-hydroxyacetyl)-6a,8a-dimethyl-10-propyl-1,2,6a,6b,7,8,8a,8b,11a,12,12a,12b-dodecahydro-4H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-4-one (S)-16α,17-(butylidenedioxy)-11β,21-dihydroxypregna-1,4-diene-3,20-dione Budesonide USP Impurity C(S) 51372-28-2 Intermediates & Fine Chemicals Pharmaceuticals Steroids