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Betamethasone Impurity 18

Betamethasone Impurity 18

Product Description
CAT No.
ALN-B025088
CAS No.
1203841-45-5
Mol. F.
C21H27FO4
Mol. Wt.
362.4
Stock
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RFQ
Chemical Name : (8S,9R,10S,11S,13S,14S,16S,17R)-9-Fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid
Smiles : F[C@@]1([C@]2(C=C3)C)[C@](CCC2=CC3=O)([H])[C@@](C[C@H](C)[C@H]4C(O)=O)([H])[C@]4(C)C[C@@H]1O
Inchi : InChI=1S/C21H27FO4/c1-11-8-15-14-5-4-12-9-13(23)6-7-20(12,3)21(14,22)16(24)10-19(15,2)18(26)17(11)25/h6-7,9,11,14-16,18,24,26H,4-5,8,10H2,1-3H3/t11-,14-,15-,16-,18?,19-,20-,21-/m0/s1

Application of LCu2013MSn in conjunction with mechanism-based stress studies in the elucidation of drug impurity structure: Rapid identification of a process impurity in betamethasone 17-valerate drug substance

Min Li, Mingxiang Lin, Abu RustumnJournal of Pharmaceutical and Biomedical Analysis 48 (2008) 1451u20131456

Development and Validation of Stability-indicating HPLC Method for Betamethoasone Dipropionate and Related Substances in Topical Formulation

A. s. vairale
, p. sivaswaroop1 and s. bandana – Indian Journal of Pharmaceutical Sciences 74(2):107-15

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