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4-amino-5-hydroxynaphthalene-2,7-disulfonic acid (Molecular Formula: C10H9NO7S2)
Product Name: 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid
CAS Registry Number: 90-20-0
EINECS: 201-975-7  
Synonyms: 90-20-0; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid;4-amino-5-hydroxynaphthalene-2,7-disulfonic acid; Kyselina H; H-Acid;H acid; 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid;
Molecular Structure:
Molecular Formula: C10H9NO7S2
Molecular Weight: 319.31096
Density:  1.88 g/cm3
Boiling Point:  
Melting Point:  >300 °C(lit.)
Flash Point:  
Risk Codes:  36/37/38
Safety Statements:  An eye irritant. See also SULFONATES. When heated to decomposition it emits very toxic fumes of NOx and SOx.
Hazard Symbols:  TSCA listed UN NO.
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