Chemical Name: 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 17-benzoate ;
Smiles: C[C@@]12[C@](C(CO)=O)(OC(C3=CC=CC=C3)=O)[C@@H](C)C[C@@]1([H])[C@]4([H])CCC5=CC(C=C[C@]5(C)[C@@]4(F)[C@@H](O)C2)=O
Inchi: InChI=1S/C24H30O6/c1-13-9-18-17-6-5-15-10-16(26)7-8-21(15,3)24(17)20(30-24)11-22(18,4)23(13,28)19(27)12-29-14(2)25/h7-8,10,13,17-18,20,28H,5-6,9,11-12H2,1-4H3/t13-,17-,18-,20-,21-,22-,23-,24+/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