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CAS No.: | 90-51-7 |
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Name: | 6-Amino-4-hydroxy-2-naphthalenesulfonic acid |
Molecular Structure: | |
Formula: | C10H9NO4S |
Molecular Weight: | 239.252 |
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; |
EINECS: | 202-000-8 |
Density: | 1.627 g/cm3 |
Boiling Point: | 458℃[at 101 325 Pa] |
Solubility: | 4.5g/L(hot water) |
Appearance: | light grey powder |
Hazard Symbols: | C |
Risk Codes: | 34 |
Safety: | 26-27-28-36/37/39-45 |
Transport Information: | UN 2585 8/PG 3 |
PSA: | 109.00000 |
LogP: | 3.03630 |
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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 (CAS NO.90-51-7) can be used of azo dyes' intermediate, and is mainly used for the manufacture of activity and direct dyes.
1. | ipr-mus LD :>500 mg/kg | CBCCT* “Summary Tables of Biological Tests” National Research Council Chemical-Biological Coordination Center. 6 (1954),59. |
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 , 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 .