 |
 |
 |
 |
 |
|
|
Uses: Intermediate for azo DYES
|
| Synonyms |
: |
8 amino 1 naphthol 3,6 disulphonic
acid
2,7 naphthalene disulphonic acid 4 amino 5 hydroxy |
| Empirical Formula |
:
|
C10 H9 O7
NS2 |
| Mol. Wt. |
:
|
319 |
| C A S No. |
:
|
90-20-0 (free acid) |
| Purity |
:
|
80 % (min) |
| Physical Appearance |
:
|
Light brownish
grey powder |
|
VINYL SULPHONE ESTER OF ACETANILIDE
(PARA BASE) |
Uses: Intermediate for reactive
DYES
|
| Synonyms |
: |
Ethanol,2-[(4 amino phenyl)
sulphonyl], hydrogen sulphate-(ester) |
| Empirical Formula |
:
|
C8H11NO6S2 |
| Mol. Wt. |
:
|
281 |
| C A S No. |
:
|
2494-89-5 |
| Purity |
:
|
95% |
| Physical Appearance |
:
|
Off white powder |
|
|
|
Uses: Intermediate for direct
DYES, non
benzidine
DYES
|
| Synonyms |
: |
4,4 diamino diphynyl amine-2 sulphonic acid benzene
sulphonic acid 5 amino 2-(4amino phenyl amino)
|
| Empirical Formula |
:
|
C12H13N3
SO3 |
| Mol. Wt. |
:
|
279 |
| C A S No. |
:
|
119-70-0 |
| Purity |
:
|
92% (min) |
| Physical Appearance |
:
|
Bluish-violet powder |
|
|
|