Chemical Name: 2-((8S,9R,10S,11S,13S,14S,16S,17R)-17-acetoxy-9-chloro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate
Smiles: O=C([C@]([C@]([C@@]1([H])C2)(C[C@H](O)[C@](Cl)([C@]3(C=C4)C)[C@@]1([H])CCC3=CC4=O)C)([C@H]2C)OC(C)=O)COC(C)=O
Inchi: InChI=1S/C22H32N2O6/c1-5-16(6-2)30-20-11-15(22(27)28-7-3)10-19(21(20)24-14(4)26)23-12-17-8-9-18(13-25)29-17/h8-9,11-12,16,19-21,25H,5-7,10,13H2,1-4H3,(H,24,26)/b23-12-/t19-,20+,21+/m0/s1
Application of LC–MSn 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 Rustum
Journal of Pharmaceutical and Biomedical Analysis 48 (2008) 1451–1456
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