This chemical is called Hydrazinecarboximidothioic acid, methyl ester, hydriodide (1:1), and its CAS registry number is 35600-34-1. With the molecular formula of C₂H₈IN₃S, its molecular weight is 105.16.

Other characteristics of the Hydrazinecarboximidothioic acid, methyl ester, hydriodide (1:1) can be summarised as followings: (1)ACD/LogP: 0.04; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.85; (4)ACD/LogD (pH 7.4): 0.01; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 3.24; (8)ACD/KOC (pH 7.4): 23.04; (9)#H bond acceptors: 3; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 34.79 Å²; (13)Flash Point: 98 °C; (14)Enthalpy of Vaporization: 47.53 kJ/mol; (15)Boiling Point: 238.4 °C at 760 mmHg; (16)Vapour Pressure: 0.0424 mmHg at 25°C.

You can still convert the following datas into molecular structure: 
1.SMILES: [I-].S(C(=[NH+]N)N)C
2.InChI: InChI=1/C2H7N3S.HI/c1-6-2(3)5-4;/h4H2,1H3,(H2,3,5);1H
3.InChIKey: NYMQJWVULPQXBK-UHFFFAOYAS