| Sr. No. | Product | Chemical Name | Structure | Molecular Formula | CAS No. |
|---|---|---|---|---|---|
| 1. | H Acid | 8-Amino-1-naphthol-3, 6-disulfonic acid, 4-Amino-5-hydroxy-2, 7-naphthalenedisulfonic acid, 1-Amino-8-naphthol-3, 6-disulfonic acid |
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C10H9NO7S2 | 90-20-0 |
| 2. | Vinyl Sulphone Ester | 2-[(4-Amino-5-methoxy-2-methylphenyl) -sulfonyl]-ethyl hydrogen sulfate |
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21635-69-8 | |
| 3. | G Salt | 2-Naphthol 6-8 Disulfonic Acid |
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c10H8O7S2 | 842-18-2 |
| 4. | N-Methyl J acid | 4-Hydroxy-7-methylamino- 2-naphthalenesulfonic acid |
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C11H11NO4S | 22346-43-6 |
| 5. | MPDSA | 2,4-Diaminobenzenesulfonic acid; meta phenylene di amine-4-sulphonic acid; 1,3-Phenylenediamine-4-sulfonic acid |
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C6H8N2O3S | 88-63-1 |
| 6. | Actyl MPDSA | m-Aminoacetanilide-4-sulfonic acid, 4-Acetamido-2-aminobenzenesulfonic acid |
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C8H10N2O5S | 88-64-2 |
| 7. | MPDSA | Meta Phenyldiamine 4:6 Di Sulfonic Acid | ![]() |
C6H8N2O6 | 137-50-8 |
| 8. | Schaeffer’s Acid | Schaeffer’s Acid 2 Naphthol 6 Sulphonic Acid/6-Hydroxy 2-Naphthalene Sulphonic Acid |
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C10H9O4S | 93-01-6 |
| 9. | P.A.A.B.4S.A | Para Amino Azo Benzene 4 Sulphonic Acid | ![]() |
C12H11N3O3S | 104-23-4 |
| 10. | 4- ADAPSA | 4-Amino Phenylamine 2 Sulphonic Acid | ![]() |
C12H12N2O3S | 91-30-5 |
| 11. | O.N.A.P.S.A | 2 Nitro Aniline 4- Sulfonic Acid | ![]() |
C6H6N2O5S | 82324-60-5 |
| 12. | P.N.A.O.S.A | 4 Nitro Aniline 2- Sulfonic Acid | ![]() |
C6H6N2O5S | 30693-53-9 |
| 13. | O.N.C.B.P.S.A | 4-Chloro-3-Nitrobenzene Sulfonic Acid | ![]() |
C6H4NO5SCL | 17691-19-9 |
| 14. | P.N.C.B.O.S.A | 2-Chloro-5-Nitrobenzene Sulfonic Acid | ![]() |
C6H4NO5SCL | 946-30-5 |
| 15. | Aniline 2:4 Di Sulphonic Acid | Aniline 2:4 Di Sulphonic Acid | ![]() |
C6H7NO6S2 | 137-51-9 |
| 16. | P.N.C.B.O.S.A | 1-Methyl 4 Nitrobenzene 2 Sulfonic Acid / 4 Nitro Toluene 2-Sulphonic Acid | ![]() |
C7H7NO5S | 121-03-9 |
| 17. | Para Cresidine Ortho Sulphonic Acid | 5 Methyl Orthoanisidine-4-Sulfonic Acid | ![]() |
C8H11NO4S | 6471-78-9 |


























