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| Name |
6-Amino-4-hydroxy-2-naphthalenesulfonic acid |
EINECS | 202-000-8 |
| CAS No. | 90-51-7 | Density | 1.627 g/cm3 |
| PSA | 109.00000 | LogP | 3.03630 |
| Solubility | 4.5g/L(hot water) | Melting Point |
N/A |
| Formula | C10H9NO4S | Boiling Point | 458℃[at 101 325 Pa] |
| Molecular Weight | 239.252 | Flash Point | N/A |
| Transport Information | UN 2585 8/PG 3 | Appearance | light grey powder |
| Safety | 26-27-28-36/37/39-45 | Risk Codes | 34 |
| Molecular Structure |
|
Hazard Symbols |
 C
|
| Synonyms |
2-Amino-8-naphthol-6-sulfonicacid;2-Naphthalenesulfonicacid, 6-amino-4-hydroxy-;6-Amino-4-naphthol-2-sulfonic acid;7-Amino-1-hydroxy-3-naphthalenesulfonicacid;7-Amino-1-naphthol-3-sulfonic acid;Aminonaphthol sulfonic acid g;C.I. Developer 3;Gamma acid;NSC 31508;NSC 8630;Y acid;g-Acid;1-Naphthol-3-sulfonicacid, 7-amino- (4CI);1-Naphthol-7-amino-3-sulfonic acid;2-Amino-6-sulfo-8-naphthol;2-Amino-8-hydroxy-6-sulfonaphthalene;2-Amino-8-hydroxynaphthalene-6-sulfonic acid; |
6-Amino-4-hydroxy-2-naphthalenesulfonic acid Chemical Properties
Structure of 6-Amino-4-hydroxy-2-naphthalenesulfonic acid (CAS NO.90-51-7):
Empirical Formula: C10H9NO4S
Molecular Weight: 239.2478
EINECS: 202-000-8
Index of Refraction: 1.748
Molar Refractivity: 59.8 cm3
Molar Volume: 147 cm3
Polarizability: 23.7×10-24cm3
Surface Tension: 86.4 dyne/cm
Density: 1.627 g/cm3
Product Categories of 6-Amino-4-hydroxy-2-naphthalenesulfonic acid (CAS NO.90-51-7): Intermediates of Dyes and Pigments;Intermediates;Organics
6-Amino-4-hydroxy-2-naphthalenesulfonic acid Uses
6-Amino-4-hydroxy-2-naphthalenesulfonic acid (CAS NO.90-51-7) can be used of azo dyes' intermediate, and is mainly used for the manufacture of activity and direct dyes.
6-Amino-4-hydroxy-2-naphthalenesulfonic acid Toxicity Data With Reference
| 1. | ipr-mus LD :>500 mg/kg | CBCCT* “Summary Tables of Biological Tests” National Research Council Chemical-Biological Coordination Center. 6 (1954),59. |
6-Amino-4-hydroxy-2-naphthalenesulfonic acid Safety Profile
Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx and SOx.
Hazard Codes: 
C
Risk Statements: 34
R34:Causes burns.
Safety Statements: 26-27-28-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S27:Take off immediately all contaminated clothing.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2585 8/PG 3
WGK Germany: 1
RTECS: QK1295250
6-Amino-4-hydroxy-2-naphthalenesulfonic acid Specification
6-Amino-4-hydroxy-2-naphthalenesulfonic acid , its cas register number is 90-51-7. It also can be called 1-Naphthol-3-sulfonic acid, 7-amino- ; 4-14-00-02823 (Beilstein Handbook Reference) ; Aminonaphthol sulfonic acid gamma ; Gamma Acid ; gamma-Acid .
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