Dexpanthenol EP Impurity C

Chemical Name: (3R)-3-hydroxy-4,4-dimethyloxolan-2-one

Synonym: Chlormadinol Acetate ; 3β-Hydroxychlormadinone Acetate ; 17-(Acetyloxy)-6-chloro-3β-hydroxypregna-4,6-dien-20-one ; (3S,8R,9S,10R,13S,14S,17R)-17-acetyl-6-chloro-3-hydroxy-10,13-dimethyl-2,3,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate