Our Products List
‘C’ Acid (2- Choloro 5-Toludine 4-Sulphonic Acid)
4 CAP (4 CHLORO 2 AMINO PHENOL)
3-3' DCB (3,3 Dichlorobenzidine Dihydrochloride)
4 B ACID
FAST BLUE B BASE
FAST RED B BASE
PERA CRASIDINE
TCB [ TETRA CHLORO BENZIDINE]
P.T. [ PARA TOLUDINE]
4 NITRO 2 AMINO PHENOL
5 NITRO 2 AMINO PHENOL
H ACID
BENZOYL H ACID
M.N.P.T.
DICHLON
C ACID, 4 CAP & 3,3 DCB SPECIFICATION
m
'C' ACID [ 2 CHLORO 5 TOLUDINE 4 SULPHONIC ACID]
Chemical Name
2- Choloro 5-Toludine 4-Sulphonic Acid
Chemical Formula
C
7
H
8
CINSO
3
CAS No.
88-53-9
Appearance
White/Light pink Powder
Structural Formula:
Molecular Weight
221.5
Total Amino Value
98-99%
Sand Content
1 % max
Fe Content
30 ppm max
Solution in NaOH
Slightly Yellowish Transparent or nearly Transparent
4-Chloro 2-Amino Phenol (4-CAP)
Product Name
4 CHLORO 2- AMINO PHENOL(4-CAP)
(Pharmaceutical Grade)
CAS. No.
95-85-2
Synonyms
5-Chloro 2-hydroxy Aniline
Para Chloro Ortho Amino Phenol
Structural Formula
Empirial
Formula
C6H6ONCL
Molecular Weight
143.57
Appearance
Off White Crystal Powder (Beige Color)
Purity by N.V
Minimum 98 %
Purity by HPLC
Minimum 99 %
Melting Point
138°C to 142°C
Ash Content
0.06 %
LOD Content
1.51%
Insoluble Maximum
0.1 % (Dilute Acid)
Moisture
Less than 1 %
Form Supplied
Dry Powder
Iron Contains
Maximum 50 ppm
3-3' DCB (3,3 Dichlorobenzidine Dihydrochloride)
Chemical Identity
3,3 Dichlorobenzidine Dihydrochloride
Empirical Formula
C
12
H
12
Cl
4
N
2
Appearance
Off white moist powder
Structural Formula
Molecular Weight
326 as Hydrochloride / 253 as Base
Purity as free
amine by NV
91% Minimum as Hydrochloride /
71% Minimum as Base
Purity by HPLC
99% Minimum
Dry Purity as free amine by
N V (M.W. 326)
98% Minimum
Tetrazo Insoluble
0.2% Maximum
Tetrazo Colour
Light Orangeist Yellow
Insoluble in dilute Hcl solution
Maximum 0.1%
Percent Moisture
8.5% Maximum
Acidity
PH 2 to 3
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