137662-59-0 26172-55-4 26530-03-0 3(2H)-Isothiazolone, 5-chloro-2-methyl- 4-ISOTHIAZOLIN-3-ONE, 5-CHLORO-2-METHYL- 5-Chloro-2-methyl-2H-isothiazol-3-one 5-Chloro-2-methyl-4-isothiazolin-3-one BRN 1210149 EINECS 247-500-7 Kathon CG 5243 Methylchloroisothiazolinone