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Dyes Intermediate

Our high quality dyes Intermediate are manufactured
& designed to permanently dye.

Dyes Intgermediate

C Acid

Specification
PRODUCT NAME C ACID (CASSELLA’S ACID)
CHEMICAL NAME 2-NAPHTHYLAMINE 4,8 DISULFONIC ACID
CAS NO. 131-27-1
EMPIRICAL FORMULA C10H9NO6S2
MOLECULAR WEIGHT 303
STRUCTURAL FORMULA
FORM SUPPLIED DRY POWDER
PHYSICAL APPEARANCE LIGHT PINKISH
SALES BASIS ON 100 % BASIS
PACKING HDPE BAG WITH PE LINER
ASSAY 70 % MIN.(ON MOL WT : 303)
INSOLUBLES 0.2 % MAX.
SOLUBILITY CLEAR SOLUTION IN DILUTE ALKALI

European K Acid

Specification
PRODUCT NAME EUROPEAN K ACID
CHEMICAL NAME 1-AMINO-8-NAPHTHOL,4,6 DISULPHONIC ACID 
8-AMINO 1 NAPHTHOL 3,5 DISULPHONIC ACID
CAS NO. 40130-23-4-FREE ACID,40492-14-6-MONO SOD.SALT
EMPIRICAL FORMULA C10H9NO7S2
STRUCTURAL FORMULA  
FORM SUPPLIED DRIED POWDER
PHYSICAL APPEARANCE GREYISH OFF WHITE COLOUR
SALES BASIS ON 100 % BASIS
PACKING HDPE BAG WITH PE LINER& JUMBO BAG
ASSAY 75 % MIN.
INSOLUBLES   0.2 % MAX.
SOLUBILITY SOLUBLE IN WATER

Amido Epsilon Acid

Specification
PRODUCT NAME AMIDO EPSILON ACID
CHEMICAL NAME 1 NAPHTHOL 3,8 DISULPHONIC ACID
MOLECULAR WEIGHT 303
STRUCTURAL FORMULA
INSOLUBLES 0.2 %
SOLUBILITY SOLUBLE IN WATER
PURITY 80 %

Sulpho C Acid

Specification
PRODUCT NAME SULPHO C ACID
CHEMICAL NAME 2-NAPHTHYLAMINE,4,6,8-TRI SULPHONIC ACID
EMPIRICAL FORMULA C10H10NO9S2
STRUCTURAL FORMULA
 INSOLUBLE 0.25 % MAX.
 PURITY 55 % MIN. SEMI. DRY
UNREACTED C ACID 0.25 %

K Acid

Specification
PRODUCT NAME K ACID
CHEMICAL NAME 2-NAPHTHYLAMINE-3,6,8-TRISULFONIC ACID
MOLECULAR WEIGHT 383
PHYSICAL APPEARANCE YELLOWWISH WHITE COLOUR MOIST MATERIAL
SOLUBILITY SOLUBLE IN HOT WATER
CAS NO. 118-03-6
STRUCTURAL FORMULA
IMPERIAL FORMULA C10-H9-N-09-S3
EINECS NO. 204-229-9
PURITY BY N.V. 65 % MINI.
2-NAPHTHYLAMINE-6,
8-DISULFONIC ACID
0.3 % MAX.
SULFURIC ACID,  
2-NAPHTHYLAMINE 0.4 % MAX.
FE 300 PPM MAX.

Schaffer Acid (Sodium Salt)

Specification
PRODUCT NAME SCHAEFFER’S ACID 
CHEMICAL NAME 2-NAPHTHOL 6-SULFONIC ACID 
EMPIRICAL FORMULA C13H2O4S
STRUCTURAL FORMULA
CAS NO. 93-01-6
MOLECULAR WEIGHT 224 
ASSAY WET 65 % MIN.
PHYSICAL APPEARANCE OFF WHITE TO BROWN COLOUR

Gamma Acid

Specification
PRODUCT NAME Gamma Acid
CHEMICAL NAME 6-AMINO-4-HYDROXY-2NAPHTHALENE SULFONIC ACID 
2-AMINO-6-SULFONIC ACID-8-NAPHTHOL
CAS NO. 90-51-7
MOLECULAR WEIGHT 239 GRAMS/MOLE
EMPIRICAL FORMULA C10 H9 N O4 S
STRUCTURAL FORMULA
PURITY MN. 90% BY CV
AMIDO G  ACID CONTENT MN.  0.30%
DIOXY G  ACID CONTENT MN.  030%
BROENNER’S ACID CONTENT MN.  1.00%
INSOLUBLE MATTERS MN.  0.20%
SOLUBILITY SOLUBILITY IN DILUTE ALKALI
PHYSICAL APPEARANCE LIGHT GRAY DRY POWDER
BASIS  OF SALES ON 100% REAL BASIS
PACKING 25/50KGS HDPE BAGS  WITH DOUBLE PE LINERS INSIDE

H Acid

Specification
PRODUCT NAME H ACID
CHEMICAL NAME 1 AMINO-8 NAPHTHOL 3-6 DISULPHONIC ACID
CAS NO. 9-3-5460
EMPIRICAL FORMULA C10H9O7NS2
MOLECULAR WEIGHT 319
STRUCTURAL FORMULA
PHYSICAL APPEARANCE GREYISH WHITE 
INSOLUNLE 0.2 % MAX.

G Salt

Specification
PRODUCT NAME G SALT 
CHEMICAL NAME 2-NAPHTHOL 6-8-DISULFONIC ACID 
EMPIRICAL FORMULA C14H8O7N2O2S
STRUCTURAL FORMULA
CAS NO. 118-32-1
EINECS NO. 204-254-6
MOLECULAR WEIGHT 304
ASSAY WET 65 % MIN.
PHYSICAL APPEARANCE WHITE TO OFF WHITE POWDER

Sulpho Gamma Acid

Specification
PRODUCT NAME SULPHO GAMMA ACID 
CHEMICAL NAME 1-NAPHTHOL-3,6-DISULFONIC ACID 
STRUCTURAL FORMULA
EMPIRICAL FORMULA C10H9NO7S2
CAS NO. 90-40-4
MOLECULAR WEIGHT 319.31096

Sulpho J Acid

Specification
PRODUCT NAME SULPHO J ACID 
CHEMICAL NAME 2-AMINO-5-NAPHTHOL-1,7-DISULFONIC ACID 
MOLECULAR WEIGHT 319
STRUCTURAL FORMULA
PURITY 70 % & ABOVE
ISOMER MAX. 3 % UNREACTED J ACID
INSOLUBLE MAX. 0.5 %
H.P.L.C. 98 % & ABOVE H.P.L.C. BY AREA