Monobutyltin tris(2-ethylhexanoate)
CAS 23850-94-4
EC 245-912-1
Formula C28H54O6Sn
MW 605.43 g/mol
Catalysts & Catalyst Precursors Plastics & PolymersCoatings, Adhesives, Sealants & Elastomers CatalysisCross-linking & Curing
Description
Monobutyltin tris(2-ethylhexanoate) (CAS 23850-94-4) is an organotin compound supplied under trade names including Fascat 9201, Fascat 4102, and Tegokat 220, as well as TIB KAT 220. It carries no assigned E-code and is classified under EC number 245-912-1 with the molecular formula C28H54O6Sn.
In polyurethane systems, it accelerates the reaction between isocyanate and hydroxyl groups, enabling controlled gel times and thorough cross-linking in rigid and flexible foam formulations. It also functions as a condensation catalyst in silicone sealants and moisture-cure coatings, promoting Si-O bond formation at room temperature without requiring elevated heat input.
This compound is subject to REACH registration requirements and must be handled in accordance with applicable EU organotin regulations. It is typically available in liquid form, supplied in drums or intermediate bulk containers. Procurement teams should confirm current REACH compliance documentation and substance restrictions with the supplier prior to ordering.
In polyurethane systems, it accelerates the reaction between isocyanate and hydroxyl groups, enabling controlled gel times and thorough cross-linking in rigid and flexible foam formulations. It also functions as a condensation catalyst in silicone sealants and moisture-cure coatings, promoting Si-O bond formation at room temperature without requiring elevated heat input.
This compound is subject to REACH registration requirements and must be handled in accordance with applicable EU organotin regulations. It is typically available in liquid form, supplied in drums or intermediate bulk containers. Procurement teams should confirm current REACH compliance documentation and substance restrictions with the supplier prior to ordering.
Physical Properties
| Melting Point | -33°C |
| Boiling Point | 544.8±33.0 °C(Predicted) |
| Density | 1.105 g/mL at 25 °C(lit.) |
| Flash Point | >230 °F |
| Water Solubility | 152μg/L at 20℃ |
| Vapor Pressure | 0.47Pa at 25℃ |
| Refractive Index | n 20/D 1.465(lit.) |
| Log P | 2.55 at 20℃ |
Safety & Handling (Learn More)
Danger GHS05 GHS07 GHS08
H
H314H315H319H412
P
P203P260P264P273P280P316P318P321P363P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P301+P330+P331P302+P361+P354P305+P351+P338P305+P354+P338
Trade & Regulatory
| UN Number | 2788 |
| ADR Class | 6.1 |
| Packing Group | III |
| WGK (Germany) | 3 |
Other Names
[butyl-bis(2-ethylhexanoyloxy)stannyl] 2-ethylhexanoatefascat9201fascat4102Fascat 4102TIB KAT 220Tegokat 220Fascat 9201Butyltintris(2-ethylhexoate)Butyltin tris(2-ethylhexoate)
Related Products
Need a chemical? Get a quote within 24 hours.