sulphuric acid 98%, sulphuric acid 70%, nitric acid 98%, nitric acid 60%, chloro sulphonic acid, oleum 23%, oleum 65%, caustic soda lye, soda ash, hcl, hydrochloric acid, sodium silicate, acetic acid, ortho toluic acid, 2 6 diclhloro phenol, hydrogen peroxide, sodium hypochlorite, 4 napsa, free acid, 4 nitro 2 aminophenol 2 sulfonic acid, pnaosa, para nitro aniline ortho sulphonic acid, 4 napsa, na salt, 4 nitro 2 aminophenol 2 sulfonic acid, pncb0sa, 4 nitro 4 amino diphenyl amine 2 sulfonic acid, pre. fc acid, 3 5 dinitro ortho toluamide, dot bp vet, dinitolmide, oxyclozanide bp vet, shiv shakti acid & chemicals, vapi, gujarat, india

Para Nitro Aniline Ortho Sulfonic Acid (PNAOSA)

Certificate of Analysis

Chemical Name	4-Nitro 4'-Amino Diphenyl Amine 2-Sulfonic Acid (Pre. F.C. Acid) (91-29-2)
Chemical Formula	C12H11N3O5S
Molecular Formula
CAS No	91-29-2
Specification	Isomer by HPLC : 0.5 % max. PPDA 1.0% Max. PNCBOSA
Molecular Weight	309
Typical Imourity	Insoluble in Caustic : 0.5 % Max.
Purity by N.V	60.00%
End Use	DYESTUFF & DYESTUFF INTERMEDIATES