4-Chloro-2-nitrobenzenediazonium chloride hemi(zinc chloride) salt GLFast Red 3 C.I. Azoic Diazo Component 9, zinc chloride salt Bis(4-chloro-2-nitrobenzenediazonium) tetrachlorozincate 4-chloro-2-nitro-benzenediazoniutetrachlorozincate(2-)(2:1) Benzenediazonium,4-chloro-2-nitro-,(T-4)-tetrachlorozincate(2-)(2:1) 4-chloro-2-nitrobenzenediazonium tetrachlorozincate (2:1)