Budesonide EP Impurity C
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Includes: HPLC, MASS/LC-MS, 1H NMR, FT-IR, Potency, Structure Elucidation Report (SER), and additional analytical data depending on the product.

1040085-99-1Budesonide EP Impurity C

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Catalogue No.:VL34003
CAS No.:1040085-99-1
Mol. Formula:C25H34O6
Mol. Weight:430.43 g/mol

Additional information on CAS 1040085-99-1

Parent drug

Budesonide

IUPAC Name

16α,17-[(1RS)-butylidenebis(oxy)]-11β-hydroxy-17- (hydroxymethyl)-D-homoandrosta-1,4-diene-3,17a-dione

Synonyms

D-Homobudesonide; (4aR, 4bS, 5S, 6aS, 7aR, 10aR, 11aS, 11bS)-4b, 6, 6a, 7a, 10a, 11, 11a, 11b, 12, 13-Decahydro-5-hydroxy-7a-(hydroxymethyl)-4a, 6a-dimethyl-9-propylchryseno[2, 3-d][1, 3]dioxole-2, 7(4aH, 5H)-dione; Budesonide EP Impurity C

Description

Budesonide EP Impurity C, also designated D-Homobudesonide, is a structurally related corticosteroid impurity associated with budesonide manufacturing and degradation chemistry. The compound, CAS 1040085-99-1, has molecular formula C25H34O6 and molecular weight 430.43 g/mol. It retains the glucocorticoid steroid nucleus while reflecting homologation at the acetal side chain, a change that can arise from route-specific synthesis or rearrangement during processing. Because of its close structural similarity to the parent drug, trace-level characterization commonly requires HPLC with diode-array detection and confirmatory LC-MS/MS, with NMR employed for structural assignment when needed.

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