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Patent Blue V 

SZ CAT No SZ-T075002
CAS No 3536-49-0
Mol.F. C27H32N2O7S2 1/2Ca
Mol.Wt. 560.7 : 1/2(40.1)
Inv. Status Custom Synthesis
Rel. CAS No 25305-77-5 (free base)


Chemical Name: N-[4-[[4-(diethylamino)phenyl](5-hydroxy-2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, hydroxide, inner salt, calcium salt (2:1);