This chemical is called 1,2,4-Triazolo[4,3-a]pyrazine,8-chloro-3-ethyl-, and its systematic name is 8-chloro-3-ethyl-[1,2,4]triazolo[4,3-a]pyrazine. With the molecular formula of C₇H₇ClN₄, its molecular weight is 182.61. The CAS registry number of this chemical is 140910-77-6.

Other characteristics of the 1,2,4-Triazolo[4,3-a]pyrazine,8-chloro-3-ethyl- can be summarised as followings: (1)ACD/LogP: 0.65; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.65; (4)ACD/LogD (pH 7.4): 0.65; (5)#H bond acceptors: 4; (6)#H bond donors: 0; (7)#Freely Rotating Bonds: 1; (8)Polar Surface Area: 43.08 Å²; (9)Index of Refraction: 1.705; (10)Molar Refractivity: 47.23 cm³; (11)Molar Volume: 121.5 cm³; (12)Polarizability: 18.72×10^-24cm³; (13)Surface Tension: 54.2 dyne/cm; (14)Density: 1.5 g/cm³.

You can still convert the following datas into molecular structure: 
1.SMILES: CCc1nnc2n1ccnc2Cl
2.InChI: InChI=1/C7H7ClN4/c1-2-5-10-11-7-6(8)9-3-4-12(5)7/h3-4H,2H2,1H3
3.InChIKey: WRIZHZWOARGYNM-UHFFFAOYAN