27441-70-9 EINECS 248-460-3 Ethanesulfonic acid, 2-((4-(3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)phenyl)sulfonyl)-, sodium salt Sodium 2-((4-(3-(4-chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)phenyl)sulphonyl)ethanesulphonate