Dibutyltin dilaurate (abbreviated DBTDL), also called dibutyltindilaurate or butynorate, is an

organotin compound Organotin compounds or stannanes are chemical compounds based on tin with hydrocarbon substituents. Organotin chemistry is part of the wider field of organometallic chemistry. The first organotin compound was diethyltin diiodide (), discovered ...

that is used as a catalyst. It is a colourless oily liquid. In terms of its structure, the molecule consists of two laurate groups attached to a dibutyltin(IV) center. The molecular geometry at tin is tetrahedral. Based on the crystal structure of the related bis(bromobenzoate), the carbonyl oxygen centers are weakly bonded to tin. Together with dibutyltin dioctanoate, dibutyltin dilaurate is used as a catalyst for

polyurethane Polyurethane (; often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from ...

production from

isocyanate In organic chemistry, isocyanate is the functional group with the formula . Organic compounds that contain an isocyanate group are referred to as isocyanates. An organic compound with two isocyanate groups is known as a diisocyanate. Diisocyan ...

s and

diol A diol is a chemical compound containing two hydroxyl groups ( groups). An aliphatic diol is also called a glycol. This pairing of functional groups is pervasive, and many subcategories have been identified. The most common industrial diol is e ...

s. It is also useful as a catalyst for

transesterification In organic chemistry, transesterification is the process of exchanging the organic group R″ of an ester with the organic group R' of an alcohol. These reactions are often catalyzed by the addition of an acid or base catalyst. The reaction ca ...

and for the room temperature vulcanization of silicones. It is also used as a stabilizer in polyvinyl chloride. It is also added to animal feed to remove cecal worms, roundworms, and tapeworms in turkeys to prevent hexamitosis and

coccidiosis Coccidiosis is a parasitic disease of the intestinal tract of animals caused by coccidian protozoa. The disease spreads from one animal to another by contact with infected feces or ingestion of infected tissue. Diarrhea, which may become bloody i ...

.{{Cite web, url=https://pubchem.ncbi.nlm.nih.gov/compound/16682738, title=Butynorate, last=PubChem, website=pubchem.ncbi.nlm.nih.gov, language=en, access-date=2019-08-23

Related compounds

* Dibutyltin dioctanoate: CAS#4731-77-5 * Dibutyltin diacetate: CAS #1067-33-0

References

Laurate esters Organotin compounds Tin(IV) compounds