Chemical Name: (6S,8R,9R,10S,14R,16S,17R)-8,9-difluoro-6,11-dihydroxy-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate
Smiles: O=C([C@](C([C@@]1([H])C2)(CC(O)[C@](F)([C@]3(C=C4)C)[C@@]1(F)C[C@H](O)C3=CC4=O)C)([C@H]2C)OC(CC)=O)COC(CC)=O
Inchi: InChI=1S/C28H36F2O8/c1-6-22(35)37-14-21(34)27(38-23(36)7-2)15(3)10-19-25(27,5)13-20(33)28(30)24(4)9-8-16(31)11-17(24)18(32)12-26(19,28)29/h8-9,11,15,18-20,32-33H,6-7,10,12-14H2,1-5H3/t15-,18+,19+,20?,24-,25?,26+,27-,28-/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