Molecular Formula: C5H7ClN2O
Molar mass: 146.57 g/mol
Flash Point: 151.2 °C
Sensitive: Hygroscopic
Melting point: 243 °C (dec.)(lit.)
Appearance: yellow to orange powder
Boiling Point: 326.4 °C at 760 mmHg
Vapour Pressure: 0.000114 mmHg at 25°C
Structure of 2-Hydroxy-4-methylpyrimidine hydrochloride(5348-51-6) :
                  
Synonyms of 2-Hydroxy-4-methylpyrimidine hydrochloride(5348-51-6) : 4-Methyl-2-pyrimidinol hydrochloride ; 4-Methyl-2(1H)-pyrimidinone hydrochloride ; 2-pyrimidinol, 4-methyl-, hydrochloride (1:1) ; 4-Methylpyrimidin-2-olhydrochlorid ; 4-METHYL-2-PYRIMIDINOL, HYDROCHLORIDE
Product Categories of 2-Hydroxyquinoline-4-carboxylic acid(84906-81-0) : Pyrimidine

Carcinogenicity of 2-Hydroxy-4-methylpyrimidine hydrochloride(5348-51-6) hasn't been listed as a carcinogen by NTP, IARC,ACGIH, or CA Prop 65.

Hazard Codes: Xi
Risk Statements:
36:  Irritating to the eyes
37:  Irritating to the respiratory system
38:  Irritating to the skin
Safety Statements:
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36:  Wear suitable protective clothing

 2-Hydroxy-4-methylpyrimidine hydrochloride(5348-51-6) is hazardous,so the first aid measures and others should be known .Such as: When on the skin: Should  flush skin with plenty of water immediatelyfor at least 15 minutes while removing contaminated clothing and shoes. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.While ,it's Inhaled: Remove from exposure and move to fresh air immediately. Then you have the ingesting of the product : Do not induce vomiting.If victim is conscious and alert, give 2-4 cupfuls of milk or water.
 2-Hydroxy-4-methylpyrimidine hydrochloride(5348-51-6) can be stable under normal temperature and pressure conditions.It is not compatible with strong oxidizing agents ,and you must not take it with incompatible materials .And also prevent it to broken down into hazardous decomposition products: Hydrogen chloride, irritating and toxic fumes and gases, carbon monoxide,nitrogen oxides, carbon dioxide, nitrogen.