The 3-Chloro-2-(1-methylhydrazino)-5-(trifluoromethyl)pyridine, with the CAS registry number 138949-13-0, is also known as 1-[3-Chloro-5-(trifluoromethyl)-2-pyridyl]-1-methylhydrazine. This chemical's molecular formula is C₇H₇ClF₃N₃ and molecular weight is 225.6. What's more, its IUPAC name is 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-methylhydrazine. 

Physical properties about 3-Chloro-2-(1-methylhydrazino)-5-(trifluoromethyl)pyridine are: (1)ACD/LogP: 1.17; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.17; (4)ACD/LogD (pH 7.4): 1.17; (5)ACD/BCF (pH 5.5): 4.55; (6)ACD/BCF (pH 7.4): 4.59; (7)ACD/KOC (pH 5.5): 102.7; (8)ACD/KOC (pH 7.4): 103.54; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 19.37Ų; (13)Index of Refraction: 1.531; (14)Molar Refractivity: 47.43 cm³; (15)Molar Volume: 153.2 cm³; (16)Polarizability: 18.8×10^-24 cm³; (17)Surface Tension: 40.1 dyne/cm; (18)Density: 1.471 g/cm³; (19)Flash Point: 113.1 °C; (20)Enthalpy of Vaporization: 50.12 kJ/mol; (21)Boiling Point: 263.4 °C at 760 mmHg; (22)Vapour Pressure: 0.0103 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system and skin. In addition, this chemical may cause inflammation to the skin or other mucous membranes. Besides, it is harmful by inhalation, in contact with skin and if swallowed. During using it, wear suitable protective clothing, gloves and eye/face protection and do not eat, drink or smoke.

You can still convert the following datas into molecular structure:
(1) SMILES: Clc1cc(cnc1N(N)C)C(F)(F)F
(2) InChI: InChI=1/C7H7ClF3N3/c1-14(12)6-5(8)2-4(3-13-6)7(9,10)11/h2-3H,12H2,1H3
(3) InChIKey: YGPUMJSRBNTPNO-UHFFFAOYAN