Molecular Structure of Quinoline-4-carboxylic acid (CAS NO.486-74-8):

IUPAC Name: Quinoline-4-carboxylic acid 
Empirical Formula: C₁₀H₇NO₂
Molecular Weight: 173.1681
H bond acceptors: 3
H bond donors: 1
Freely Rotating Bonds: 1
Polar Surface Area: 39.19Ų
Index of Refraction: 1.684
Molar Refractivity: 49.11 cm³
Molar Volume: 129.3 cm³
Surface Tension: 65.1 dyne/cm
Density: 1.339 g/cm³
Flash Point: 164.7 °C
Enthalpy of Vaporization: 62.6 kJ/mol
Boiling Point: 348.7 °C at 760 mmHg
Vapour Pressure: 1.85E-05 mmHg at 25 °C
EINECS: 207-640-1
Melting point: 254-255 °C(lit.)
Product Categories: Quinolines, Quinazolines and derivatives; pharmacetical; Carboxylic Acids; Quinolines, Isoquinolines & Quinoxalines; Quinoline & Isoquinoline; Quinoline Derivertives; Quinolinecarboxylic Acids, etc.; Quinolines; Carboxylic Acids; Quinolines, Isoquinolines & Quinoxalines; Building Blocks; Heterocyclic Building Blocks
InChI: InChI=1/C10H7NO2/c12-10(13)8-5-6-11-9-4-2-1-3-7(8)9/h1-6H,(H,12,13)
Smiles: c12c(nccc1C(O)=O)cccc2

Hazard Codes: Xi
Risk Statements: 36/37/38-36/38
R36/37/38:Irritating to eyes, respiratory system and skin. 
R36/38:Irritating to eyes and skin.
Safety Statements: 26-36-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3
RTECS: GD3850000
Hazard Note: Irritant

 Quinoline-4-carboxylic acid , with CAS number of 486-74-8, can be called 4-Quinolinecarboxylic acid ; 4-Carboxyquinoline ; 4-quinoline carboxylicacid ; Cinchoninic acid . It is a white to light yellow crystal powder.