51372-29-3

51372-29-3 structure

Name: Budesonide
Chemical Name: 16a(R),17-(Butylidenebis(oxy))-11b,21-dihydroxypregna-1,4-diene-3,20-dione
CAS Number: 51372-29-3
Molecular Formula: C₂₅H₃₄O₆
Molecular Weight: 430.534
Catalog: API Hormone and endocrine-regulating drugs Adrenal corticosteroids
Create Date: 2018-02-04 08:00:00
Modify Date: 2025-08-21 12:23:33

Name	16a(R),17-(Butylidenebis(oxy))-11b,21-dihydroxypregna-1,4-diene-3,20-dione
Synonyms	Budesonide Spirocort Bidien arachidonic acid ethanolamide 2H-Naphth[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one, 4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-5-hydroxy-6b-(2-hydroxyacetyl)-4a,6a-dimethyl-8-propyl-, (4aR,4bS,5S,6aS,6bS,9aR,10aS,10bS)- N-arachidonoylethanolamide (4aR,4bS,5S,6aS,6bS,8R,9aR,10aS,10bS)-5-Hydroxy-6b-(hydroxyacetyl)-4a,6a-dimethyl-8-propyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-on (4aR,4bS,5S,6aS,6bS,8R,9aR,10aS,10bS)-5-hydroxy-6b-(hydroxyacétyl)-4a,6a-diméthyl-8-propyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodécahydro-2H-naphto[2',1':4,5]indéno[1,2-d][1,3]dioxol-2-one Pulmicort Rhinocort 2H-naphth[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one, 4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-5-hydroxy-6b-(hydroxyacetyl)-4a,6a-dimethyl-8-propyl-, (4aR,4bS,5S,6aS,6bS,8R,9aR,10aS,10bS)- N-Arachidonoyl-2-hydroxyethylamide (4aR,4bS,5S,6aS,6bS,8R,9aR,10aS,10bS)-6b-Glycoloyl-5-hydroxy-4a,6a-dimethyl-8-propyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one Budeson arachidonylethanolamide 2H-Naphth[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one, 4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-5-hydroxy-6b-(2-hydroxyacetyl)-4a,6a-dimethyl-8-propyl-, (4aR,4bS,5S,6aS,6bS,8R,9aR,10aS,10bS)- ENTOCORT dexbudesonide (4aR,4bS,5S,6aS,6bS,9aR,10aS,10bS)-6b-Glycoloyl-5-hydroxy-4a,6a-dimethyl-8-propyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one 2H-naphth[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one, 4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-5-hydroxy-6b-(hydroxyacetyl)-4a,6a-dimethyl-8-propyl-, (4aR,4bS,5S,6aS,6bS,9aR,10aS,10bS)- 5,8,11,14-Eicosatetraenoylethanolamide (4aR,4bS,5S,6aS,6bS,8R,9aR,10aS,10bS)-5-hydroxy-6b-(hydroxyacetyl)-4a,6a-dimethyl-8-propyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dodecahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one N-arachidonoyl ethanolamine arachidonoylethanolamide Arachidonoyl-EA 16a(R),17-(Butylidenebis(oxy))-11b,21-dihydroxy-pregna-1,4-diene-3,20-dione

Density	1.3±0.1 g/cm3
Boiling Point	599.7±50.0 °C at 760 mmHg
Melting Point	194-199ºC
Molecular Formula	C₂₅H₃₄O₆
Molecular Weight	430.534
Flash Point	201.8±23.6 °C
Exact Mass	430.235535
PSA	93.06000
LogP	3.14
Vapour Pressure	0.0±3.9 mmHg at 25°C
Index of Refraction	1.592
Storage condition	-20°C Freezer

Hazard Codes	Xi
HS Code	2914509090

123-72-8

638-94-8

~99%

51372-29-3

Literature: SUN PHARMACEUTICAL INDUSTRIES LIMITED Patent: WO2005/44759 A2, 2005 ; Location in patent: Page/Page column 11 ;

13951-70-7

123-72-8

51372-29-3

Literature: Lenna, Roberto; Montoro, Maurizio Patent: US2009/259037 A1, 2009 ; Location in patent: Page/Page column 3-4 ;

Precursor 3
123-72-8 638-94-8 13951-70-7
DownStream 0

HS Code	2914509090
Summary	HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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