100-03-8 113371-82-7 171898-97-8 27886-79-9 4-11-00-00006 (Beilstein Handbook Reference) 4-Chlorobenzenesulfinic acid 49865-88-5 68716-73-4 BRN 2356583 Benzenesulfinic acid, 4-chloro- Benzenesulfinic acid, p-chloro- EINECS 202-812-2 p-Chlorobenzenesulfinic acid p-Chlorobenzenesulphinic acid