Description and features

Viacat 220 (Monobutyltin-tris-(ethylhexoate)) is used as catalyst for manufacturing of plasticizers, saturated and unsaturated polyesters, coating resins and in urethane reaction to reduce cure temperature to 140 – 160°C.

Shipment Info

Europe and United States: Provided ViaCat 220 (MBTEH) 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.

This substance (CAS: 814-94-8) has been registered under REACH (EC) 1907/2006.

Product Identification

CAS number 23850-94-4
EC number 245-912-1
HS code 2931 90 00


Appearance Liquid
Tin content 18.40 – 20.20
Saponification nr mg KOH/g 255 – 2850
Pour point °C -18 °C


Available packaging: 25 KG drum
Special packaging is available on request


Store Monobutyltin tris ethylhexoate in a cool, dry and well-ventilated area and in line with legal requirements.
Keep ViaCat 220 (MBTEH) away from heat sources and oxidizing agents.


A Material Safety Data Sheets (MSDS) is available for ViaCat 220 (MBTEH) and all other products supplied by Vesta Chemicals 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.

Molecular and structural information

Molecular formula C28H54O6Sn
Molecular weight 611.44 g/mol
Structural formula 23850-94-4

Physicochemical information

Boiling point 228 °C @ 760 mmHg
Density 1.150 g/ml @ 25 °C
Flash point >113 °C
Melting point -33.0 °C
Partition coefficient (log Pow) 8.00
Refractive index 1.462 – 1.470 @ 20 °C
Solubility in water Insoluble
Viscosity mPa.s 140 – 180
Monobutyltin tris ethylhexoate | CAS: 23850-94-4 | Disclaimer. This information is supplied solely for informational purposes and Vesta Chemicals 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.