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Description and features
Viacat 4202 (Dibutyltin dilaurate) is a yellow liquid which has C32H64O4Sn as chemical formula. It is used in the production of polyether and polyester based polyurethanes. Further it finds its application as catalyst in both adhesives and sealants. Other uses include heat stabilizer for PVC and room temperature vulcanization (RTV) of sillicone polymers.

Dibutyltin dilaurate is also known as di-n-butyldilauryltin, dibutylbis(lauroyloxy)stannane and dibutyltin didodecanoate.

Product information

CAS number77-58-7
EC number 201-039-8
HS code2931 90 00
SensitivityNot hygroscopic

Molecular and structural information

Molecular formulaC32H64O4Sn
Molecular weight631.56 g/mol
Structural formula:77-58-7


AppearanceYellow liquid
Tin content18.00 -19.00 %
Moisture<0.40 %
Colour (Gardner)< 300

Physicochemical information

Boiling point205 °C
Density1.043 g/ml @ 28.50 ºC
Flash point± 191.00 °C
Melting point28.50 °C
Partition coefficient (log Pow)4.44
Solubility in waterInsoluble (< 0.1 mg/l)
Vapour pressure7.7 x 10-6 Pa @ 25°C

Available packaging: 25 KG / 200 KG drums or IBC.
Special packaging is available on request.

Shipment Info
Europe and United States: Provided ViaCat 4202 (DBTDL) is on stock in our local warehouses our lead time is about one week if delivered in 25 KG drums.
Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Store Dibutyltin dilaurate in a cool, dry and well-ventilated area and in line with legal requirements.
Keep DOTO away from heat sources and oxidizing agents.

This substance (CAS: 77-58-7) has been registered under REACH (EC) 1907/2006.

A Material Safety Data Sheets (MSDS) is available for ViaCat 4202 (DBTDL) and all other products supplied by Vesta Intracon BV. An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Dibutyltin dilaurate: Disclaimer. This information is supplied solely for informational purposes and Vesta Intracon bv makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice.