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Dyes Intermediate

Categories

DTPTSA

DTPT

N W ACID

2-7 DIOL

1,6 Cleves Acid

1,7 Cleves Acid

Mix Cleves Acid

Peri acid

Violet acid

C Acid

European k Acid

Amido Epsilon Acid

Sulpho C Acid

K Acid

Schaffer Acid

Sulpho Gamma Acid

DTPTSA


Specification
PRODUCT NAME Dehydrothio-p-toluidine Sulfonic Acid (DTPTSA)
SYNONYMS 2-(4-AMINOPHENYL)-6-METHYL-1,3- BENZOTHIAZOLE-7- SULFONIC ACID
CAS NO. 130-17-6
Molecular Formula C14H12N2O3S2
MOLECULAR WEIGHT 320.39 g/Mol
STRUCTURAL FORMULA
Specification Yellow/ Brownish Yellow
Purity 65.0% Minimum
Purity by HPLC 85.0% Minimum

DTPT


Specification
PRODUCT NAME Dehydrothio-p-toluidine (DTPT)
SYNONYMS 4-(6-methyl-1,3-benzothiazol-2-yl)aniline
CAS NO. 92-36-4
Molecular Formula C14H12N2S
MOLECULAR WEIGHT 320.39 g/Mol
STRUCTURAL FORMULA
Specification Yellow/ Brownish Yellow
Purity 99.0% Minimum
Purity by HPLC 98.0% Minimum

N W ACID


Specification
PRODUCT NAME N W ACID
SYNONYMS 4-(6-methyl-1,3-benzothiazol-2-yl)aniline
CAS NO. 92-36-4
Molecular Formula C14H12N2S
MOLECULAR WEIGHT 320.39 g/Mol
STRUCTURAL FORMULA
Specification Yellow/ Brownish Yellow
Purity 99.0% Minimum
Purity by HPLC 98.0% Minimum

2-7 DIOL


Specification
PRODUCT NAME 2-7 DIOL
SYNONYMS 2,7-DIHYDROXYNAPHTHALENE
CAS NO. 582-17-2
Molecular Formula C10H8O2
MOLECULAR WEIGHT 160.17 g/Mol
STRUCTURAL FORMULA
Specification Light grey to Grey and Light Green to Green
Purity by HPLC 96.0% Minimum

1,6 Cleves Acid


Specification
PRODUCT NAME 1,6 Cleves Acid
SYNONYMS 1-Amino-6-naphthalenesulfonic acid
CAS NO. 119-28-8
Molecular Formula C10H9NO3S
MOLECULAR WEIGHT 223.25 g/Mol
STRUCTURAL FORMULA
Specification Grey
Purity 94.0% Minimum
Purity by HPLC 92.0% Minimum

1,7 Cleves Acid


Specification
PRODUCT NAME 1,7 Cleves Acid
SYNONYMS 1-Amino-7-naphthalenesulfonic acid
CAS NO. 119-28-8
Molecular Formula C10H9NO3S
MOLECULAR WEIGHT 223.25 g/Mol
STRUCTURAL FORMULA
Specification Grey
Purity 90.0% Minimum
Purity by HPLC 90.0% Minimum

Mix Cleves Acid


Specification
PRODUCT NAME Mix Cleves Acid
SYNONYMS 1-Amino-6-naphthalenesulfonic acid & 1-Amino-7-naphthalenesulfonic acid
CAS NO. 119-28-8
Molecular Formula C10H9NO3S
MOLECULAR WEIGHT 223.25 g/Mol
STRUCTURAL FORMULA
Specification Grey
Purity 90.0% Minimum
1-6 Cleaves Acid by HPLC 38.0% ± 3.0%
1-7 Cleaves Acid by HPLC 55.0% ± 3.0%
Peri Acid by HPLC 5.0% Max
Laurent Acid by HPLC 1.0% Max

Peri acid


Specification
PRODUCT NAME Peri acid
SYNONYMS 1-naphthylamine-8-sulfonic acid
CAS NO. 85-75-7
Molecular Formula C10H9NO3S
MOLECULAR WEIGHT 223.25 g/Mol
STRUCTURAL FORMULA
Specification Grey To Reddish
Purity 90.0% Minimum
Purity by HPLC 94.0% Minimum

Violet acid


Specification
PRODUCT NAME Violet acid
SYNONYMS 1-Hydroxy-3,6-naphthalenedisulfonicacid
CAS NO. 578-85-8
Molecular Formula C10H8O7S2
MOLECULAR WEIGHT 304 g/Mol
STRUCTURAL FORMULA
Specification Light Pink
Purity 60.0% Minimum
Purity by HPLC 93.0% Minimum

c acid