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Basic Information
CAS No.: 31519-22-9
Name: 1,4-Dihydroxy-2-naphthoic acid
Article Data: 9
Molecular Structure:
Molecular Structure of 31519-22-9 (1,4-Dihydroxy-2-naphthoic acid)
Formula: C11H8O4
Molecular Weight: 204.182
Synonyms: 2-Naphthoicacid, 1,4-dihydroxy- (8CI);1,4-Dihydroxy-2-naphthoate;
EINECS: 250-674-7
Density: 1.535 g/cm3
Melting Point: 220 °C (dec.)(lit.)
Boiling Point: 461.7 °C at 760 mmHg
Flash Point: 247.1 °C
Solubility: Slightly soluble in water.
Appearance: Slight greenish yellow powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-37/39
PSA: 77.76000
LogP: 1.94920
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Chemistry

IUPAC Name: 1,4-Dihydroxynaphthalene-2-carboxylic acid
Synonyms of 1,4-Dihydroxy-2-naphthoic acid (CAS NO.31519-22-9): 1,4-Dihydroxy-2-naphthalenecarboxylic acid ; 2-Naphthalenecarboxylic acid, 1,4-dihydroxy-
CAS NO: 31519-22-9
Molecular Formula: C11H8O4
Molecular Weight: 204.18
Molecular Structure:
EINECS: 250-674-7
H bond acceptors: 4
H bond donors: 3
Freely Rotating Bonds: 3
Polar Surface Area: 44.76Å2
Index of Refraction: 1.761
Molar Refractivity: 54.78 cm3
Molar Volume: 132.9 cm3
Surface Tension: 84.6 dyne/cm
Density: 1.535 g/cm3
Flash Point: 247.1 °C
Enthalpy of Vaporization: 76.13 kJ/mol
Boiling Point: 461.7 °C at 760 mmHg
Vapour Pressure: 2.55E-09 mmHg at 25°C 
Melting point: 220 ºC (dec.) 
Product Categories of 1,4-Dihydroxy-2-naphthoic acid (CAS NO.31519-22-9): Intermediates of Dyes and Pigments;Naphthalene derivatives;C11 to C12;Carbonyl Compounds;Carboxylic Acids 
SMILES: O=C(O)c2cc(O)c1ccccc1c2O
InChI: InChI=1/C11H8O4/c12-9-5-8(11(14)15)10(13)7-4-2-1-3-6(7)9/h1-5,12-13H,(H,14,15)
InChIKey: VOJUXHHACRXLTD-UHFFFAOYAH
Std. InChI: InChI=1S/C11H8O4/c12-9-5-8(11(14)15)10(13)7-4-2-1-3-6(7)9/h1-5,12-13H,(H,14,15)
Std. InChIKey: VOJUXHHACRXLTD-UHFFFAOYSA-N

Safety Profile

Safety Information about
Hazard Codes: IrritantXi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39: Wear suitable gloves and eye/face protection.
WGK Germany: 3