2,4-Dihydroxy-3-nitropyridine

Following is the structure of 2,4-Dihydroxy-3-nitropyridine (CAS NO.89282-12-2):
                          
Empirical Formula: C₅H₄N₂O₄
Molecular Weight: 156.0963 g/mol
Molar Product Categories: Heterocycles; Pyridine
Refractivity: 33.85 cm³
Molar Volume: 94.2 cm³
Density: 1.65 g/cm³
Flash Point: 110.6 °C
Index of Refraction: 1.637
Melting point: 265 °C (dec.)
Surface Tension: 75.3 dyne/cm
Enthalpy of Vaporization: 57.71 kJ/mol
Boiling Point: 259.3 °C at 760 mmHg
Vapour Pressure of 2,4-Dihydroxy-3-nitropyridine (CAS NO.89282-12-2): 0.00192 mmHg at 25 °C

Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements of 2,4-Dihydroxy-3-nitropyridine (CAS NO.89282-12-2): 26-36/37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.

 2,4-Dihydroxy-3-nitropyridine , its cas register number is 89282-12-2. It also can be called 4,6-Dihydroxy-5-nitropyridine; 4-Hydroxy-3-nitro-2-pyridone ; 2,4-Pyridinediol, 3-nitro- ; 3-Nitropyridine-2,4-diol ; 4-Hydroxy-3-nitro-2(1H)-pyridinon ; 4-Hydroxy-3-nitro-2(1H)-pyridinone ; and 4-Hydroxy-3-nitropyridin-2(1H)-on .It is light yellow crystalline powder.
 2,4-Dihydroxy-3-nitropyridine (CAS NO.89282-12-2) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Then you have the ingesting of the product : If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. And get medical aid immediately.
 2,4-Dihydroxy-3-nitropyridine (CAS NO.89282-12-2) could be stable at room temperature in closed containers under normal storage and handling conditions. It is not compatible with oxidizing agents. And also prevent it to broken down into hazardous decomposition products: nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. In addition, 2,4-Dihydroxy-3-nitropyridine (CAS NO.89282-12-2) should be stored in a tightly closed container, or stored in a cool, dry, well-ventilated area away from incompatible substances.