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Dye Intermediates

H acid

H Acid

Table Specification
SYNONYMS 1 AMINO : 8 NAPHTHOL
3:6 DISULPHONIC ACID
MOLECULAR WEIGHT 319
CAS NO. 9/3/5460
EMPIRICAL FORMULA :  C10H9O7NS2
PHYSICAL APPEARANCE GREYISH WHITE MATERIAL
PURITY BY COUPLING VALUE 80.00 % MINIMUM
CHROMOTROPIC ACID LESS THAN 1.0 %
OMEGA ACID LESS THAN 0.5 %
INSOLUBLES 0.2 % MAX
Vinyl Sulphone Dyes

VS

Table Specification
SYNONYMS 1 AMINO-PHENYL-4-BETA HYDROXY ETHYL
SULPHONE SULPHATE ESTER
MOLECULAR WEIGHT 281
CAS NO. 2494-89-5
EMPIRICAL FORMULA :  C8H11NO6S2
PHYSICAL APPEARANCE WHITE TO GREY COLOURED (DRY MATERIAL)
PURITY (NITRATE VALUE) 96.00 % MINIMUM
PURITY HYDROLYSIS VALUE 96.3 % MINIMUM
INSOLUBLES IN WATER 0.25 % MAX

SVS

Table Specification
CHEMICAL NAME 3 SULPHONYL-4-AMINO PHENYL BETA HYDROXY ETHYL SULPHONE SULPHATE ESTER
CAS NO. 42986 - 22 - 1
MOLECULAR WEIGHT 361.0
MOLECULAR FORMULA C8H11NO9S3
EINECS NO.
PURITY 65% MINIMUM
APPLICATION DYE INTERMEDIATE

OAVS

Table Specification
Chemical name 1-AMINO-2-METHOXY-4-BETA HYDROXY ETHYL SULPHONE SULPHATE ESTER
Molecukar weight 311
CAS No. 26672-22-0
Apperence Pale white to grey powder
PURITY BY N.V 94% (Min)
PURITY BY HPLC 90% (Min)
Mesh Size 100% (85 Mesh)
Insoluble less than 0.3%

PCVS

Table Specification
Chemical name 1-AMINO-2-METHOXY-5- METHYL BETA HYDROXY ETHYL SULPHONE
Molecukar weight 325
CAS No. 21635-69-8
Appearence Pale white to grey powder
PURITY BY N.V 94% (Min)
PURITY BY HPLC 91.5% (Min)
PC content 400 ppm (Max)
Mesh Size 100% (85 Mesh)
Insoluble less than 0.3%

Bronners V.S

Table Specification
SYNONYMS 2-NAPHTHYL AMINE 6-BETA
HYDROXY ETHYL SULPHONE
MOLECULAR WEIGHT 251
CAS NO. 52218-35-6
EMPIRICAL FORMULA :  C10H9NO4S
PHYSICAL APPEARANCE :  LIGHT BROWN DRY POWDER
PURITY (NITRITE VALUE) :  92.00 % MINIMUM (MOL.WT.251)
PURITY HYDROLYSIS VALUE :  90 % MINIMUM
INSOLUBLES IN WATER :  1.5 % MAXIMUM

D.M.A.V.S

Table Specification
Product Name Vinyl Sulphone Ester OF 2:5 Dimethoxy Aniline also known as 2, 5 DMAVS
Chemical Name 2-(4-Amino-2, 5-Dimethoxy-Phenyl-Sulphonyl) Ethanol Sulphate Ester
Structural Formula SO2CH2CH2OSO3H
Molecular weight 341
Physical Appearance White Crystal Wet Cake
Empirical Formula C10H15O8S2N
CAS No 26672-24-2
Purity 94.00 % Min
Description Greyish powder
Solubility Soluble In Dilute Alkaline Solution
Form of supply Dry Powder
Uses As Dye Intermediate
Packing 25/50 Kg HDPE Bags with Polyethylene Line
Sales Basis On Real Content 100% Basis

M.P.D.S.A

Table Specification
Product Name M.P.D.S.A
Chemical Name Meta Phenylene Diamine 4 Sulfonic Acid – Free Acid
Chemical Formula C6H8N2O3S
Molecular weight 188 Gm / Mole
Physical Appearance White Crystal Wet Cake
OdourE Odorless
CAS No 88-63-1
ACX No X1066076-7
Purity 99.5 % by C.V. With M-Nitro Aniline
HPLC purity 99.8 % Min
Other impurity 0.1 % Max
Solubility Soluble In Alkaline Water
Insoluble 0.2 % Max
Moisture 0.2 % Max
Form supplied Off White Small Crystal
Packing 25 / 50 kgs. HDPE bag with inside liner
Applications Intermediate for Dyestuffs

D.A.S.A

Table Specification
SYNONYMS 4:4 DIAMINO SULPHANILIDE
MOLECULAR WEIGHT 263
CAS NO. 16803-97-7
EMPIRICAL FORMULA :  C12H13N3O2S
PHYSICAL APPEARANCE :  LIGHT BROWN COLOURED DRY MATERIAL
PURITY (NITRITE VALUE) :  95.0 % MINIMUM (M.W. 263)
INSOLUBLES IN DIL-HCL 0.2 % MAXIMUM
PURITY BY HPLC 96.00 % MINIMUM

M.U.A

Table Specification
Quality 100
Assay 98%
MP 46-50 °C (lit.)
Storage temp 2-8°C
SMILES string OC(=O)CCCCCCCCCCS
PURITY (NITRITE VALUE) :  95.0 % MINIMUM (M.W. 263)
InChl 1S/C11H22O2S/c12-11(13)9-7-5-3-1-2-4-6-8-10-14/h14H,1-10H2,(H,12,13)
InChl key GWOLZNVIRIHJHB-UHFFFAOYSA-N