Chungyo® Dye intermediates

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Product Name CAS RN Product Name CAS RN
Refined naphthalene 91-20-3 2-Aminonaphthalene-1-sulfonic acid 81-16-3
Beta naphthol 135-19-3 2-Amino-1,5-naphthalenedisulfonic acid 117-62-4
K acid 118-03-6 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid 119-40-4
Tobias acid 81-16-3 J Acid Urea 134-47-4
J acid 1987/2/5 Beta Naphthol 135-19-3
H acid 5460/9/3 Di J acid 1987/3/6
Para base ester 2494-89-5 6-Amino-4-hydroxy-2-naphthalenesulfonic acid 90-51-7
PNCB 100-00-5 2,5-dimethyl-1,4-phenylenediamine 6393/1/7
ONCB 88-73-3 3,3′-dichlorobenzidine dihydrochloride 612-83-9
o-Aminophenol(OAP) 95-55-6 2′,4′-dimethylacetoacetanilide 97-36-9
6-chloro-2,4-dinitroaniline(6-Chloro) 3531-19-9 Acetoacetanilide 102-01-2
Sulfanilic acid 121-57-3 2′-Chloroacetoacetanilide 93-70-9
Bromamine acid 116-81-4 Acetoacet-o-toluidide 93-68-5
Quinizarine 81-64-1 2-Amino-4-chloro-5-methylbenzenesulfonic acid 88-51-7
Bon acid 92-70-6 3-Hydroxy-2-naphthoic acid 92-70-6
Naphthol AS 92-77-3 4-Aminobenzamide 2835-68-9
Naphthol AS-PH 92-74-0 O-Nitroaniline-p-Sulfonic Acid 616-84-2
Naphthol AS-IRG 4433-79-8 Naphthol AS-PH 92-74-0
Acetoacetanilide (AAA) 102-01-2 AMBI 67014-36-2
o-Acetoacetaniside(AAOA) 92-15-9 2-[2-(2-Aminophenoxy)ethoxy]phenylamine 52411-34-4
3,3′-dichlorobenzidine (DCB) 91-94-1 5-ABI 95-23-8
2-Amino-4-chloro-5-methybenzenesulfonic acid 88-51-7 5-Acetoacetlamino benzimdazolone 26576-46-5
4-Aminotoluene-3-sulfonic acid 88-44-8 ASBI 26848-40-8
1-Phenyl-3-methyl-5-pyrazolone (PMP) 89-25-8 tert-Butyl 2-aminobenzoate 64113-91-3
p-Anisidine(PA) 104-94-9 2-Chloro-1,4-diaminobenzene 615-66-7
o-Anisidine(OA) 90-04-0 3-Amino-4-methoxybenzanilide 120-35-4
Bromamine Acid 116-81-4 Naphtanilide EL 137-52-0
6-disulphonic acid 90-20-0 Naphthol AS-LC 4273-92-1
J Acid 1987/2/5 1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid 90-20-0
1,8-Diaminonaphthalene 479-27-6

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