Bismarck Brown R

Name:
Bismarck Brown R
Detailed information:

Chemistry name:	toluene-2,4-diazo-bis-m-toluylenediamine hydrochloride; CI 21010
M Formula:	CH3C6H3[NNC6H2(CH3)(NH2)2]2•2HCl
Properties:
Dark brown powder. Soluble in water and alcohol.
Derivation:
Action of nitrous acid on toluylene diamine.
Use:
Dye for wool and leather, biological stain.