Chinese name: Dibutyl tin diisooctoate, di-n-butyl tin diisooctoate, FASCAT4208 catalyst

English name: 4208, dibutyltin bis(2-ethylhexanoate), Dibutyltin di(2-ethylhexoate), Di-N-butyltin di-2-ethylhexanoate, Dibutylbis((2-ethyl-1-oxohexyl)oxy)stannane, Dibutyltin bis( alpha-ethylhexanoate), Dibutyltin di(2-ethylhexanoate), NSC 73733, Stannane, bis((2-ethylhexanoyl)oxy)dibutyl-, Stannane, dibutylbis((2-ethylhexanoyl)oxy)-, Tin, dibutyl-, di( 2-ethylhexoate), Hexanoic acid, 2-ethyl-, 1,1′-(dibutylstannylene) ester, Stannane, bis(2-ethylhexanoyloxy)dibutyl-, Stannane, dibutylbis((2-ethyl-1-oxohexyl)oxy)- , Stannane, dibutylbis((2-ethylhexanoyl)oxy)- (8CI), ibutyltin di-2-ethylhexoate, 2-ethylhexanoic acid – dibutyl-lambda~2~-stannane (2:1), dibutyltin, 2-ethylhexanoate, Ditutyltin 2-ethylhexanoate

Physical and chemical properties:

CAS: 2781-10-4

EC 220-481-2

Molecular formula C24H48O4SN

Molecular weight 519.346

Appearance: No Available

Melting point, boiling point (Mp.&Bp.): Mp:54-60°C; Bp.:215-20°C/2mm

 • White to straw liquid

• Silanol/silicone condensation reactions


 Dibutyltin diisooctoate is a chemical product with a molecular weight of 519.3455.

For caulk and sealant applications and silicone production

Storage and transportation:

It should be sealed and stored in a dry, cool and ventilated warehouse.


Packing: 25Kg cardboard drum.

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