4-Amino 4’- Nitro Di Phenyl Amine, 2-Sulphonic Acid is offered in dry powder or wet cake form. 4-Amino 4’- Nitro Di Phenyl Amine, 2-Sulphonic Acid is available in reddish brown colour. 4-Amino 4’- Nitro Di Phenyl Amine, 2-Sulphonic Acid is hygienically processed to ensure safety of usage. 4-Amino 4’- Nitro Di Phenyl Amine, 2-Sulphonic Acid comes in different specifications to cater to specific requirement.