The CAS register number of 1(2H)-Phthalazinone, 4-chloro-, hydrazone is 51935-42-3. It also can be called as 4-Chloro-1-hydrazinophthalazine and the systematic name about this chemical is 1-chloro-4-hydrazinophthalazine. The molecular formula about this chemical is C₈H₇ClN₄ and the molecular weight is 194.62.

Physical properties about 1(2H)-Phthalazinone, 4-chloro-, hydrazone are: (1)ACD/LogP: 2.27; (2)ACD/LogD (pH 5.5): 2.26; (3)ACD/LogD (pH 7.4): 2.26; (4)ACD/BCF (pH 5.5): 30.36; (5)ACD/BCF (pH 7.4): 31; (6)ACD/KOC (pH 5.5): 398.16; (7)ACD/KOC (pH 7.4): 406.51; (8)#H bond acceptors: 4; (9)#H bond donors: 3; (10)#Freely Rotating Bonds: 1; (11)Polar Surface Area: 32.26 Å²; (12)Index of Refraction: 1.774; (13)Molar Refractivity: 53.68 cm³; (14)Molar Volume: 128.5 cm³; (15)Polarizability: 21.28x10^-24cm³; (16)Surface Tension: 79 dyne/cm; (17)Density: 1.513 g/cm³; (18)Flash Point: 267 °C; (19)Enthalpy of Vaporization: 79.02 kJ/mol; (20)Boiling Point: 517.8 °C at 760 mmHg; (21)Vapour Pressure: 7.93E-11 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc2nnc(c1c2cccc1)NN
(2)Std. InChI: InChI=1S/C8H7ClN4/c9-7-5-3-1-2-4-6(5)8(11-10)13-12-7/h1-4H,10H2,(H,11,13)
(3)Std. InChIKey: UQTJGZYAFKMABR-UHFFFAOYSA-N