Molecular structure of Butyltin tris(2-ethylhexanoate) (CAS NO.23850-94-4) is:

Product Name: Butyltin tris(2-ethylhexanoate)
CAS Registry Number: 23850-94-4
IUPAC Name: [Butyl-bis(2-ethylhexanoyloxy)stannyl] 2-ethylhexanoate
Molecular Weight: 605.43476 [g/mol]  
Molecular Formula: C₂₈H₅₄O₆Sn  
H-Bond Donor: 0  
H-Bond Acceptor: 6
Melting Point: -33 °C
Refractive index: n20/D 1.465(lit.)
Density: 1.105 g/mL at 25 °C(lit.)
EINECS: 245-912-1
Other Registry Number: 57654-67-8
Product Categories: Organometallic Reagents;Organotin;Organotins
Canonical SMILES: CCCCC(CC)C(=O)O[Sn](CCCC)(OC(=O)C(CC)CCCC)OC(=O)C(CC)CCCC
InChI: InChI=1S/3C8H16O2.C4H9.Sn/c3*1-3-5-6-7(4-2)8(9)10;1-3-4-2;/h3*7H,3-6H2,1-2H3,(H,9,10);1,3-4H2,2H3;/q;;;;+3/p-3
InChIKey: GVKORIDPEBYOFR-UHFFFAOYSA-K

Safty information about Butyltin tris(2-ethylhexanoate) (CAS NO.23850-94-4) is:
Hazard Codes: T
Risk Statements: 23/24/25-36/37/38 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-28-36/37/39-45 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S28:After contact with skin, wash immediately with plenty of soap-suds. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2788 6.1/PG 3
WGK Germany: 3
RTECS: WH6788500
TSCA: Yes
HazardClass: 6.1(b)
PackingGroup: III

 Butyltin tris(2-ethylhexanoate) , its cas register number is 23850-94-4. It also can be called Butyltris((2-ethyl-1-oxohexyl)oxy)stannane ; Hexanoic acid, 2-ethyl-, 1,1',1''-(butylstannylidyne) ester ; Stannane, butyltris((2-ethyl-1-oxohexyl)oxy)- ; Stannane, butyltris((2-ethylhexanoyl)oxy)- (8CI) .