Molecule structure of Guanidine, 1,1'-((methylethanediylidene)dinitrilo)bis-, dihydrochloride, dihydrate (CAS NO.31959-87-2) :

IUPAC Name: 2-[(E)-[(1E)-1-(diaminomethylidenehydrazinylidene)propan-2-ylidene]amino]guanidine dihydrate dihydrochloride 
Molecular Weight: 293.15482 g/mol
Molecular Formula: C₅H₁₈Cl₂N₈O₂ 
Boiling Point: 436.6 °C at 760 mmHg
Flash Point: 217.8 °C
Enthalpy of Vaporization: 69.31 kJ/mol
Vapour Pressure: 7.99E-08 mmHg at 25 °C
H-Bond Donor: 8
H-Bond Acceptor: 10
Rotatable Bond Count: 3
Tautomer Count: 8
Exact Mass: 292.092977
MonoIsotopic Mass: 292.092977
Topological Polar Surface Area: 156
Heavy Atom Count: 17
Complexity: 264
Canonical SMILES: CC(=NN=C(N)N)C=NN=C(N)N.O.O.Cl.Cl
Isomeric SMILES: C/C(=N\N=C(N)N)/C=N/N=C(N)N.O.O.Cl.Cl
InChI: InChI=1S/C5H12N8.2ClH.2H2O/c1-3(11-13-5(8)9)2-10-12-4(6)7;;;;/h2H,1H3,(H4,6,7,12)(H4,8,9,13);2*1H;2*1H2/b10-2+,11-3+;;;;
InChIKey of Guanidine, 1,1'-((methylethanediylidene)dinitrilo)bis-, dihydrochloride, dihydrate (CAS NO.31959-87-2) : WTJBHEZHUNHLJR-RRFWXCNOSA-N

A skin irritant. Experimental reproductive effects. Questionable carcinogen with experimental neoplastigenic data. When heated to decomposition it emits very toxic fumes of HCl and NO_x.

 Guanidine, 1,1'-((methylethanediylidene)dinitrilo)bis-, dihydrochloride, dihydrate (CAS NO.31959-87-2) is also called 1,1'-(Methylethanedilidenedinitrilo)biguanidine dihydrochloride dihydrate ; NSC 32946 ; Hydrazinecarboximidamide, 2,2'-(1-methyl-1.2-ethanediylidene)bis-, dihydrochloride, dihydrate .