The Systematic name about this chemical is 4-chloropyrido[4,3-d]pyrimidine. The cas register number of 4-Chloropyrido[4,3-d]pyrimidine is 89583-92-6. It also can be called as pyrido[4,3-d]pyrimidine, 4-chloro-.

Physical properties about 4-Chloropyrido[4,3-d]pyrimidine are: (1)ACD/LogP: 0.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0; (4)ACD/LogD (pH 7.4): 0; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 30; (8)ACD/KOC (pH 7.4): 30; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 38.67Ų; (13)Index of Refraction: 1.675; (14)Molar Refractivity: 43.264 cm³; (15)Molar Volume: 115.171 cm³; (16)Surface Tension: 66.93 dyne/cm; (17)Density: 1.438 g/cm³; (18)Flash Point: 174.308 °C; (19)Enthalpy of Vaporization: 53.523 kJ/mol; (20)Boiling Point: 316.135 °C at 760 mmHg; (21)Vapour Pressure: 0.001 mmHg at 25°C.

People can use the following data to convert to the molecule structure.
1.SMILES: Clc2ncnc1ccncc12
2.InChI: InChI=1/C7H4ClN3/c8-7-5-3-9-2-1-6(5)10-4-11-7/h1-4H 
3.InChIKey: MFUWUCHAQPUKDY-UHFFFAOYAF
4.Std. InChI: InChI=1S/C7H4ClN3/c8-7-5-3-9-2-1-6(5)10-4-11-7/h1-4H