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6-Amino-4-hydroxy-2-naphthalenesulfonic acid cas no:90-51-7

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;

Identification
Name6-Amino-4-hydroxy-2-naphthalenesulfonic acid
CAS90-51-7
Synonyms2-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(EC#)202-000-8
Molecular FormulaC10H9NO4S
Molecular Weight239.24
Chemical Properties
Appearancelight grey powder
Safety Data

Hazard C:Corrosive
Risk R34
Safety

Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of NOx and SOx.

Hazard Codes:??CorrosiveC
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


Toxicity
1. ???

ipr-mus LD :>500?mg/kg

??? CBCCT* ?? “Summary Tables of Biological Tests” National Research Council Chemical-Biological Coordination Center. 6 (1954),59.

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