Empirical Formula: C5H4N2O2
Molecular Weight: 124.0975
Index of Refraction: 1.578
Molar Refractivity: 29.36 cm3
Molar Volume: 88.4 cm3
Surface Tension: 72.1 dyne/cm
Density: 1.403 g/cm3
Flash Point: 198.3 °C
Enthalpy of Vaporization: 69.14 kJ/mol
Boiling Point: 404.2 °C at 760 mmHg
Vapour Pressure: 2.92E-07 mmHg at 25 °C
Melting point: 244.2 °C (dec.)(lit.)
Appearance: Off-white to brown powder
Structure of 4-Pyridazinecarboxylic acid (CAS NO.50681-25-9):
Product Category of 4-Pyridazinecarboxylic acid (CAS NO.50681-25-9): Pyridazine series;Heterocyclic Building Blocks;Pyridazines
Hazard Codes of 4-Pyridazinecarboxylic acid (CAS NO.50681-25-9): Xi
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
Hazard Note: Irritant
HazardClass: IRRITANT
4-Pyridazinecarboxylic acid , its cas register number is 50681-25-9. It also can be called Pyridazine-4-carboxylic acid ; Pyridazine-4,5-Carboxylic acid ; and Acide pyridazine-4-carboxylique .
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