Basic

CAS No.	2503-56-2
Product Name	5-Methyl-s-triazolo[1,5-a]pyrimidin-7-ol
Synonyms	5-methyl-s-triazolo(1,5-a)pyrimidin-7-ol; 5-methyl(1,2,4)triazolo(1,5-a)pyrimidin-7-ol; 7-Hydroxy-5-methyl-1,3,4-triazaindolizine; 7-Hydroxy-5-methyl-1,2,4-triazolo[1,5-a]pyrimidine; 7-Hydroxy-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine; 5-Methyl[1,2,4]triazolo[1,5-a]pyrimidin-7-ol; 5-Methyl-7-hydroxy-1,2,4-triazolo[1,5-a]pyrimidine; 5-methyl[1,2,4]triazolo[1,5-a]pyrimidin-7(1H)-one; 5-methyl[1,2,4]triazolo[1,5-a]pyridin-7-ol; 7-Hydroxy-5-methyl[1,2,4]triazole[1,5a]pyrimidine; 5-Hydroxy-7-methyltriazoindolizine
Molecular Formula	C7H7N3O
Molecular Weight	149.15

Physical property

Density	1.424g/cm3
Melting point	280-283℃
Water solubility	INSOLUBLE IN COLD WATER
Refractive index	1.699

Hazard Symbols	Xi:Irritant;
Risk Codes	R36/37/38:;
Safety Description	S26:; S36:;