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Dye intermediates
Trade Name   Chemical Name   CAS No. Structure
Schaeffer's Acid  

2-Naphthol-6-Sulfonic Acid (Sodium / Potassium Salt)

   93-01-6
           
Broenner's Acid   2-Naphthylamine-6-Sulfonic Acid   93-00-5
Amino G Acid   1,3-Naphthalenedisulfonic Acid, 7-Amino   86-65-7
Sulfotobias Acid   2-Naphthylamine-1,5-Disulfonic Acid   117-62-4
Dahl's Acid   2-Naphthylamine–5-Sulfonic Acid   81-05-0
Indian K Acid   2-Naphthylamine-3,6,8-Trisulfonic Acid   118-03-6
Sulfo Gamma Acid(R R Acid)   7-Amino-1-Naphthol-3,6-Disulphonic Acid   90-40-4
G Salt   2-Naphthol-6,8-Disulfonic Acid   842-18-2
R Salt   2-Naphthol-3,6-Disulfonic Acid   135-51-3
ONT4SA   O-Nitro Toluene-P-Sulfonic Acid   97-06-3
PNTOSA   P-Nitro Toluene-O-Sulfonic Acid   121-03-9
PNAOSA   P-nitro aniline-o-sulfonic acid   30693-53-9/96-75-3
Sulfo J-acid   2-Naphthylamine,5-Hydroxy-1,7-Disulfonic Acid   6535-70-2
Gamma acid   2-Naphthylamine,8-Hydroxy, 6-Sulfonic Acid   90-51-7
Meta Ureido Aniline-HCL   Urea, N-(3-aminophenyl)- Hydrochloride   59690-88-9
MAA   3 - Amino Acetanilide - Hydrochloride   621-35-2
Carbethoxy J Acid   2-Carbethoxy-Amino-5-Naphtol-7-Sulfonic Acid   124605-84-1
Acetyl Broenner’s Acid  

2-Acetamino Namphthalene-6-Sulfonic Acid

   68189-32-2
Tobias acid   2-Amino-1-naphthalenesulfonic acid   81-16-3
H acid   1 AMINO : 8 NAPHTHOL 3:6 DISULPHONIC ACID   9/3/5460
Parabase(vinyl sulphone)   1-AMINO-PHENYL-4- BETA HYDROXY ETHYL SULPHONE SULPHATE ESTER   2494-89-5
J Acid   2-Amino-5-Naphthol-7-Sulphonic Acid   87-02-5
MPD   MPD; 1,3-Propanediol-2-methyl; Methyl Propanediol; proprietary hydroformulation of allyl alcohol   2163-42-0
C Acid   5-Amino-2-chlorotoluene-4-sulfonic acid   88-53-9
Anthranilic Acid  

2-AA, 2-Aminobenzoic acid

   118-92-3  
Opsamide   2 - Amino Phenol - 4 – Sulfonamide   98-32-8
Beta Naphthol   Beta Naphthol   135-19-3
Anthranilic Opsamide   2-Aminophenol-4-(2-Carboxyanilinesulfamido)   91-35-0
M.P.D.S.A- SODIUM SALT   1,3 Diamino Benzene 4 Sulfonic Acid   3177-22-8
M.P.D.S.A- Free acid   1,3 Diamino Benzene 4 Sulfonic Acid Free Acid   88-63-1
Triphosgene (Bistrichloromethyl)   Bis(trichloromethyl) carbonate   32315-10-9
PCVS   P-Amino 3-Methoxy 6 Methyl β -hydroxy Ethyl Sulphone Sulphate Ester    21635-69-8
OAVS   2-9((3-Amino-4-methoxyphenyl)sulphonyl)ethyl Hydrogen   10079-20-6
F.C.ACID   4'4 Diamino, Diphenylamine, 2-Sulfonic Acid    
Gamma Acid   2-Amino-8-Naphthol-6-Sulphonic Acid   90-51-7
G Salt   2 - Naphthol 6, 8 -Disulphonic Acid, 2 - Hydroxynaphthalene-6, 8 - Disulphonic Acid   842-18-2
Amino R Acid  

2-Napthylamine-,6-Disulfonic Acid

   92-28-4
Meta Ureido Aniline   Meta Uriedo Aniline Hydro Chloride (MUA)    
B.D.S.A.   Benzedine – Disulphonic Acid (B.D.S.A.)   117-61-3
Peri Acid   1-Amino-naphthalene 8sulfonic acid;   82-75-7
K Acid   2-Naphthylamine-3 : 6 : 8 Trisulphonic Acid, B-Naphthyl Amine-3 : 6 : 8 Trisulphonic Acid   118-03-6
Amino G Acid   2-NAPHTHYLAMINE-6,8-DISULFONIC ACID   842-17-1