Dioctyltin dilaurate
CAS 3648-18-8
EC 222-883-3
Formula C40H80O4Sn
MW 743.77 g/mol
Organometallic Compounds Plastics & PolymersCoatings, Adhesives, Sealants & ElastomersLubricants & Metalworking Plasticizer & SoftenerAntioxidant & StabilizerLubrication
Description
Dioctyltin dilaurate (CAS 3648-18-8), also known as DOTL, DOTDL, TIB KAT 216, and SKL1132, is an organotin compound belonging to the dialkyltin dicarboxylate family. It carries no E-code designation and is identified under EC number 222-883-3 with the molecular formula C40H80O4Sn.
In PVC and polymer processing, DOTL functions as a heat stabilizer by scavenging hydrogen chloride released during thermal degradation, preventing discoloration and chain breakdown. It also serves as a catalyst in polyurethane and silicone systems, accelerating condensation reactions, and contributes lubrication properties in metalworking formulations to reduce friction between metal surfaces.
DOTL is supplied as an oil-phase liquid and is subject to REACH registration requirements within the European Union. Procurement teams should verify supplier REACH compliance documentation and SDS before sourcing. Standard packaging formats include drums and IBC containers, with grades varying by tin content depending on application requirements.
In PVC and polymer processing, DOTL functions as a heat stabilizer by scavenging hydrogen chloride released during thermal degradation, preventing discoloration and chain breakdown. It also serves as a catalyst in polyurethane and silicone systems, accelerating condensation reactions, and contributes lubrication properties in metalworking formulations to reduce friction between metal surfaces.
DOTL is supplied as an oil-phase liquid and is subject to REACH registration requirements within the European Union. Procurement teams should verify supplier REACH compliance documentation and SDS before sourcing. Standard packaging formats include drums and IBC containers, with grades varying by tin content depending on application requirements.
Physical Properties
| Melting Point | 17-18 °C |
| Boiling Point | 647.5±24.0 °C(Predicted) |
| Density | 0.998 g/cm³ |
| Flash Point | 70°C |
| Color | Colourless |
| Form | Oil |
| Water Solubility | 15.2μg/L at 20℃ |
| Vapor Pressure | 0.002Pa at 25℃ |
| Refractive Index | 1.4700 |
| Log P | 9.26 |
Safety & Handling (Learn More)
Danger GHS08 GHS05
H
H314H318H360H361H371H372H373H412
P
P203P260P264P270P273P280P316P317P318P319P321P363P405P501P264+P265P304+P340P308+P316P301+P330+P331P302+P361+P354P305+P354+P338
Trade & Regulatory
| HS Code | 2920907090 |
| UN Number | 2788 |
Other Names
[dodecanoyloxy(dioctyl)stannyl] dodecanoateDOTLDOTDLTIB KAT 216dioctyldllauryltinDIOCTYLDILAURYLTINDiocyyldilauryltin
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