Dye Intermediates

ONCBSA; Ortho Nitro Chloro Benzene Sulfonic Acid; 3-Nitro-4-Chlorobenzenesulfonic Acid;

CAS no. 121-18-6

OAPSA; Ortho Amino Phenol-4-Sulfonic Acid; 3-Amino-4-Hydroxybenzenesulfonic Acid; 4-Hydroxymetanilic acid

CAS no. 98-37-3

6-NAPSA; 6-Nitro-2-Amino Phenol-4-Sulfonic Acid; 3-Amino-4-Hydroxy-5-Nitrobenzenesulfonic Acid

CAS no. 96-93-5

6-Acetyl OAPSA; AAPS; ACLAP; 3-(Acetylamino)-5-amino-4-hydroxybenzenesulfonic acid

CAS no. 40306-75-0

Acetyl OAP; 2-Acetamidophenol; 2-(Acetylamino)phenol; 2-Hydroxyacetanilide; N-Acetyl Ortho Amino Phenol

CAS no. 614-80-2

4-NAPSA; 4-Nitro-2-Amino Phenol-6-Sulfonic Acid; 3-Amino-4-Hydroxy-5-Nitrobenzenesulfonic Acid;

CAS no. 96-67-3

PNCBOSA; Para Nitro Chloro Benezene Ortho Sulfonic Acid; 2-Chloro-5-Nitrobenzenesulfonic Acid

CAS no. 96-73-1

4-NADPSA; Nitro Para Para Acid; 4-Amino-4′-Nitro Diphenyl amine-2-Sulfonic Acid; 2-((4-aminophenyl) amino)-5-nitrobenzenesulfonic acid; Aniline Nitro Nerol Acid

CAS no. 91-29-2

FC Acid; Para Para Acid; 4,4’-Diamino Diphenyl amine-2-Sulfonic Acid; 5-amino-2-((4-aminophenyl)amino) benzenesulfonic acid

CAS no. 119-70-0

4-ADAPSA; 4-Aminodiphenylamine-2-Sulfonic Acid; 5-amino-2-(phenylamino)benzenesulfonic acid; 6-Anilinometanilic acid;

CAS no.91-30-5

PAABSA; PASS; Para Amino Azo Benzene-4-Sulfonic Acid; (Z)-4-((4-aminophenyl) diazenyl)benzenesulfonic acid

CAS no. 104-23-4

PAAB-3,4-DSA; Para Amino Azo Benzene-3,4′-Sulfonic Acid; (Z)-2-amino-5-((4-sulfophenyl)diazenyl) benzenesulfonic acid; 4-aminoazobenzene-3,4′-disulphonic acid

CAS no.101-50-8

4-NAP; 4-Nitro-2-Aminophenol

CAS no. 99-57-0

5-NAP; 5-Nitro-2-Aminophenol

CAS no. 121-88-0

4-CAPSA; 4-Chloro-2-Aminophenol-6-Sulfonic Acid; 3-Amino-5-Chloro-2-Hydroxybenzenesulfonic Acid;

CAS no.88-23-3

6-Nitro-4-CAP; 6-Nitro-4-Chloro-2-Aminophenol

CAS no. 6358-08-3

6-CAPSA; 6-Chloro-2-AminoPhenol-4-Sulfonic Acid; 3-Amino-5-Chloro-4-Hydroxybenzenesulfonic Acid

CAS no. 5857-94-3

Metanilic Acid; 3-Aminobenzenesulfonic Acid

CAS no. 121-47-1

DEMAP; N,N-Diethyl meta Aminophenol; 3-diethylaminophenol

CAS no. 91-68-9

4-Chloro-Metanilic Acid; 2-Chloro-5-Aminobenzenesulfonic Acid

CAS no. 88-43-7

6-Chloro-Metanilic Acid; 3-Amino-4-Chlorobenzensulfonic Acid

CAS no. 98-36-2

Aniline-2,4-DSA; 2-Aminobenzene-1,5-Disulphonic acid

CAS no. 137-51-9

ALDS; Aniline-2,5-DSA; 2-Aminobenzene-1,4-Disulfonic acid

CAS no. 98-44-2

BDSA; 4,4′-Diamino-[1,1′-biphenyl]-2,2′-Disulfonic acid; 2,2′-Benzidine disulfonic Acid

CAS no. 117-61-3

MPDSA; 2,4-Diaminobenzenesulfonic Acid

CAS no. 88-63-1

Acetyl MPDSA; 4-Acetamido-2-Aminobenzenesulfonic acid

CAS no. 88-64-2

MPDDSA; 4,6-Diaminobenzene-1,3-Disulfonic acid

CAS no. 137-50-8

Propionic MPDSA; 3-((5-amino-2-sulfophenyl)amino) propanoic acid; 2-beta-Carboxyethylamino-4-aminobenzenesulfonic acid;

CAS no. 334757-72-1

PNAOSA; 2-Amino-5-Nitrobenzene sulfonic acid

CAS no. 96-75-3

PNAOSA; 2-Amino-5-Nitrobenzene sulfonic acid

CAS no. 88-45-9

PPDDSA; 2,5-Diaminobenzene-1,4-Disulfonic Acid

CAS no. 7139-89-1

Anilinomethanesulfonic Acid

CAS no. 103-06-0

Anilinomethanesulfonic Acid

CAS no. 103-06-0

3,4-DMA; Amino Veratrole; 3,4-Dimethoxyaniline

CAS no. 6315-89-5

OA4SA; 3-amino-4-methoxybenzene sulphonic acid; 2-Methoxy Aniline-5-Sulfonic Acid

CAS no. 98-42-0

PA2SA; Para Anisidine-2-Sulfonic Acid; 5-amino-2-methoxybenzene sulphonic acid

CAS no. 6470-17-3

PA3SA; Para Anisidine-3-Sulfonic Acid; 2-amino-5-methoxybenzene sulphonic acid

CAS no. 13244-33-2

PA-2,5-DSA; Para Anisidine-2,5-Disulfonic Acid; 2-amino-5-methoxy benzene-1,4-disulfonic acid

CAS no. 27327-48-6

3,5-DNBA; 3,5-Dinitrobenzoic Acid

CAS no. 99-34-3

3,5-DABA; 3,5-Diaminobenzoic Acid

CAS no. 535-87-5

PNTOSA; 2-Methyl-5-Nitrobenzenesulfonic Acid

CAS no. 121-03-9

DNSDA; 4,4′-dinitrostilbene-2,2′-disulphonic acid

CAS no. 128-42-7

NASDA; 4-Amino-4′-nitrostilbene-2,2′-disulphonic acid; 5-amino-2-[2-(4-nitro-2-sulphophenyl)vinyl]
benzenesulphonic acid

CAS no. 119-72-2

4-Sulfo Anthranilic Acid; 4-SABA; BAS Acid;

CAS no. 98-43-1

Hydrazone of 4-Sulfo Anthranilic Acid (4-SH); benzaldehyde-(-2-carboxy-5-sulfphenyl)-hydrazo; 2-[(phenylmethylene)-hydrazino]-4-sulfobenzoic acid

CAS no. 77734-52-2

Amino Hydrazone of 4-Sulfo Anthranilic Acid

CAS no. 945225-18-3

5-SABA; 5-Sulfo Anthranilic Acid

CAS no. 3577-63-7

Hydrazone of 5-Sulfo Anthranilic Acid (5-SH); benzaldehyde-(-2-carboxy-4-sulfphenyl)-hydrazo; 2-[(phenylmethylene)-hydrazino]-5-sulfobenzoic acid

CAS no. 68645-45-4

“Mesidine; Mesitidine; 2,4,6-Trimethylaniline”

CAS no.88-05-1

“M-Acid; 3,5-Diamino-2,4,6 Trimethylbenzenesulfonic Acid”

CAS # 32432-55-6

“HEGN Stage-1; 2-((2-aminoethyl)amino)-5-nitrobenzenesulfonic acid; PNCBOSA-EDA Condense”

“HEGN Stage-2; Chloranil Condense
HEGN”

“MAMAS Acid; 3-Methoxy-4-Aminoazobenzene-3′-Sulfonic Acid; (E)-3-((4-Amino-3-methoxyphenyl) diazenyl) benzenesulfonic Acid”

CAS no. 138-28-3

“N-Methyl OAPSAMIDE; 3-amino-4-hydroxy-N-methylbenzenesulphonamide”

CAS no. 80-23-9

N,N-Dimethyl OAPSAMIDE; OAP-DMA OAPSAMIDE; 2-Aminophenol-5-Sulfo dimethylamide; 4-amino-3-hydroxy-N,N-dimethylbenzene sulphonamide

CAS no. 41608-75-7

“Aniline OAPSAMIDE; 3-amino-4-hydroxy-N-phenylbenzenesulphonamide”

CAS no.80-20-6

“Anthranilic OAPSAMIDE; 2-[[(3-amino-4-hydroxyphenyl)sulphonyl]amino] benzoic acid”

CAS no. 91-35-0

“OAPSAMIDE; Ammonia OAPSAMIDE; 3-amino-4-hydroxybenzenesulphonamide”

CAS no. 98-32-8

Xylidine OAPSAMIDE; 5-amino-2-chloro-n-(2,4-dimethylphenyl) benzenesulfonamide

CAS no. 71215-81-1

“2-amino-N-cyclohexyl-N-methylbenzene sulphonamide”

CAS no. 70693-59-3

“Bis Phenol Ester; 4,4′-Bis(2-Aminobenzenesulfonyl) Bisphenol Ester; Isopropylidenedi-1,4-phenylene bis(2-aminobenzene sulphonate)”

CAS no. 68015-60-1

“4,4′-DABA; 4,4′-Diamino Benzanilide; 4-amino-N-(4-aminophenyl)benzamide”

CAS no. 785-30-8

“Benzamide VS; Vinyl Sulphone Ester of Benzanilide; Benzamide, 4-amino-N-[3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]-“

CAS no. 66056-51-7

“PAA; 4-Aminoacetanilide”

CAS no. 122-80-5

“PAA-2-SA; 2-acetamido-5-aminobenzenesulphonic acid”

CAS No. 6973-05-3

“Barbituric Acid; 6-Hydroxyuracil; Malonylurea; 2,4,6-Pyrimidinetriol”

CAS No. 67-52-7

“Cyanoimino barbituric acid; Pyrimidinecarbamonitrile; 2-Cyanoamino-4,6-Dihydroxypyrimidine”

CAS No. 55067-10-2

“2-Pyridone; 1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide”

CAS No. 29097-12-9

“SMCP; Sulfo Methyl Carbamoyl Pyridone; N-Ethyl-3-Sulphomethyl-4-Methyl-5-Carbamoyl-6-Hydroxy-2-Pyridone”

CAS No. 40306-70-5

“DTPTSA; Dehydro Thio Para Toluidine Sulfonic Acid;”

CAS No. 130-17-6

“MXOSA 2,4-Dimethylaniline-6-sulfonic acid”

CAS No. 88-22-2

“2,5-DATS; 2,5-diamino-4-methylbenzenesulfonic acid”

CAS No. 88-52-8

“2,5-DMPPD”

CAS No. 17626-02-7

“Bronner’s Acid; 6-aminonaphthalene-2-sulfonic acid”

CAS No. 93-00-5

“Mix Cleve Acid; (1,6-Cleve Acid & 1,7-Cleve Acid); 1-Amino-6-naphthalenesulfonic Acid; 1-Aminonaphthalene-7-Sulfonic acid”

CAS No. 119-79-9 (1,6-Cleve Acid); 119-28-8 (1,7-Cleve Acid)

1,6-Cleve Acid; 1-Amino-6-naphthalenesulfonic Acid

CAS No. 119-79-9

1,7-Cleve Acid; 1-Amino-7-naphthalenesulfonic Acid

CAS No. 119-28-8

“1-Acetylamino-7-Naphthol; N-(7-hydroxynaphthalen-1-yl)acetamide”

CAS No. 6470-18-4

“Peri Acid; 8-Aminonaphthalene-1-Sulfonic Acid”

CAS No. 82-75-7

“Phenyl Peri Acid; 8-Anilinonaphthalene-1-sulfonic acid;”

CAS No. 82-76-8

“C-Acid; Amino C-Acid; 3-aminonaphthalene-1,5-disulfonic acid; 2-napthylamine 4,8-disulfonic acid”

CAS No. 131-27-1

“Sulfo C-Acid; 3-aminonaphthalene-1,5,7-trisulfonic acid; 7-aminonaphthalene-1,3,5-trisulfonic acid; 2-aminonapthalene-4,6,8-trisulfonic acid”

CAS No. 27310-25-4

“Sulfo Gamma-Acid; RR Acid; 3-amino-5-hydroxy naphthalene-2,7-disulfonic acid; 2-Amino-8-napthol-3,6-Disulfonic acid;”

CAS No. 90-40-4

“STA; Sulfo Tobias Acid; 2-Amino-1,5-napthalene disulfonic acid;”

CAS No. 117-62-4

“Supho J-Acid; 2-Amino-5-napthol-1,7-disulfonic acid;”

CAS No. 6535-70-2

“NMJ; N-Methyl J-Acid; 1-Hydroxy-6-(methylamino)-3-naphthalenesulfonic acid”

CAS No. 22346-43-6

“NPJ; N-Phenly J-Acid; 2-Phenylamino-5-hydroxy naphtalene-7-sulfonic acid, 6-phenylamino-1-napthol-3-sulfonic acid”

CAS No. 119-40-4

“Carbethoxy J-Acid ; 2-Naphthalenesulfonic acid, 7-[(ethoxycarbonyl) amino]-4-hydroxy”

CAS No. 124605-84-1

“Gamma Acid 2-Amino-8-naphthol-6-sulfonic acid”

CAS No. 90-51-7

“L-Acid”

CAS No. 117-59-9

“Chromotropic Acid”

CAS No. 148-25-4

G salt

CAS No. 842-18-2

Dihyroxy G salt; Dioxy G acid

CAS No. 6357-93-3

“MSPGA;Meta Sulfo Phenyl Gamma Acid”

CAS No. 25251-42-7

“Para carboxy Phenyl gamma acid”

CAS No. 5855-84-5

N methyl gamma acid

CAS No. 6259-53-6

European K acid

CAS No. 130-23-4

Violet acid

CAS No. 578-85-8

Laurent’s acid

CAS No. 84-89-9

Rhoduline acid

CAS No. 87-03-6

ONCBSC

CAS No. 97-08-5

PNCBSC

CAS No. 4533-95-3

2,5 Dimethoxy aniline

CAS No. 102-56-7

“Para cresidine”

CAS No. 120-71-8

PCOSA

CAS No. 6471-78-9

OAVS

CAS No. 10079-20-6 or 26672-22-0

PCVS

CAS No. 21635-69-8

DMAVS

CAS No. 26672-24-2

Bronner’s VS

NA

Sulfo Bronner’s VS

NA

Para base ester

CAS No. 2494-89-5

DASA

CAS No. 16803-97-7

Meta amino acetanilide HCl; MAA

CAS No. 621-35-2

Bronner’s Sulfonamide

4-Chloro-2-aminophenol-5-Sulfonamide

CAS No.41606-65-9

Alpha napthyl amine

CAS No. 134-32-7

Sodium picramate

CAS No. 831-52-7

NW acid

CAS No. 84-87-7

2,5 Xylidene

CAS No. 95-78-3