IUPAC Name: Methylselanylmethane ; platinum(2+) ; Dichloride 
Following is the structure of cis-Dichlorobis(dimethylselenide)platinum(II) (CAS NO.18252-65-8):
               
Empirical Formula: C₄H₁₂Cl₂PtSe₂
Molecular Weight: 484.0481
Enthalpy of Vaporization: 28.11 kJ/mol
Boiling Point: 49.8 °C at 760 mmHg
Vapour Pressure of cis-Dichlorobis(dimethylselenide)platinum(II) (CAS NO.18252-65-8): 308 mmHg at 25 °C
Canonical SMILES: C[Se]C.C[Se]C.[Cl-].[Cl-].[Pt+2]
InChI: InChI=1S/2C2H6Se.2ClH.Pt/c2*1-3-2;/h2*1-2H3;2*1H;/q;+2/p-2
InChIKey: HTAJIGBWCKQQJL-UHFFFAOYSA-L

Poison by intravenous route. When heated to decomposition, cis-Dichlorobis(dimethylselenide)platinum(II) (CAS NO.18252-65-8) emits toxic fumes of Se, Pt, and Cl⁻.

OSHA PEL: TWA 0.2 mg(Se)/m³
ACGIH TLV: TWA 0.2 mg(Se)/m³; TWA 0.002 mg(Pt)/m³

 cis-Dichlorobis(dimethylselenide)platinum(II) , its cas register number is 18252-65-8. It also can be called Platinum(II), bis(methylselenide)dichloro-, cis- ; Platinum, dichlorobis(methyl selenide)-, cis- ; Platinum, dichlorobis(methylselenide)-, cis- ; and Platinum, dichlorobis(selenobis(methane))- (SP-4-2) .