P-CHLORO-O-TOLUIDINE, DIAZONIUM SALT; RED TR SALT; 4-CHLORO-2-METHYLBENZENEDIAZONIUM HEMI[ZINC CHLORIDE] SALT; 4-CHLORO-2-METHYLBENZENEDIAZONIUM SALT; FAST RED; FAST RED SALT TR; FAST-RED SUBSTRATE; FAST RED TR HEMI[ZINC CHLORIDE] SALT; (4-chloro-2-methylphenyl)iminoazanium,dichlorozinc,chloride; 4-Chloro-2-methylbenzenediazonium chloride - dichlorozinc (2:2:1); 4-Chloro-o-toluenediazonium tetrachlorozincate