((2,5-Dichlorophenyl)thio)acetic acid 2,5-Dichlorophenylthioglycol acid 2-06-00-00299 (Beilstein Handbook Reference) 6274-27-7 Acetic acid, ((2,5-dichlorophenyl)thio)- BRN 1969006 EINECS 228-468-3 NSC 36971