Chemical Formula: C8H10N4O2 Physical state and appearance: Solid. (Crystalline solid.) Odor: Odorless. Taste: Bitter. (Slight.) Molecular Weight: 194.2 g/mole Color: White. pH (1% soln/water): 6.9 [Neutral.] Boiling Point: Not available. Melting Point: 238°C (460.4°F) Critical Temperature: Not available. Specific Gravity: 1.23 (Water = 1) Vapor Pressure: Not applicable. Vapor Density: Not available. Volatility: Not available. Odor Threshold: Not available. Water/Oil Dist. Coeff.: The product is equally soluble in oil and water; log(oil/water) = -0.1 Ionicity (in Water): Not available. Dispersion Properties: See solubility in water, diethyl ether. Solubility: Soluble in hot water. Partially soluble in cold water, acetone. Very slightly soluble in diethyl ether. Freely soluble in pyrrole; in tetrahydrofuran containing about 4% water. Soluble in pyridine, ethyl acetate. Partially soluble in alcohol Slightly soluble in petroleum ether. Solubility in water is increased by alkali benzoates, cinnamates, citrates or salicylates |