Dibutyltin dilaurate

Dibutyltin dilaurate (abbreviated DBTDL) is an organotin compound with the formula (CH3(CH2)10CO2)2Sn((CH2)3CH3)2. It is a colorless viscous and oily liquid. It is used as a catalyst .

Dibutyltin dilaurate
Names
IUPAC name
[Dibutyl(dodecanoyloxy)stannyl] dodecanoate
Other names
  • Butynorate
  • Davainex
  • DBTDL
  • DBTL
  • Dibutylbis(lauroyloxy)tin
  • Dibutylstannylene dilaurate
  • Dibutyltin didodecanoate
  • Dibutyltindilaurate
  • Lauric acid, 1,1'-(dibutylstannylene) ester
  • Stabilizer D-22
  • T 12 (catalyst)
  • Tinostat
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.000.946
EC Number
  • 201-039-8
PubChem CID
RTECS number
  • WH7000000
UNII
UN number 3146
  • InChI=1S/2C12H24O2.2C4H9.Sn/c2*1-2-3-4-5-6-7-8-9-10-11-12(13)14;2*1-3-4-2;/h2*2-11H2,1H3,(H,13,14);2*1,3-4H2,2H3;/q;;;;+2/p-2
    Key: UKLDJPRMSDWDSL-UHFFFAOYSA-L
  • InChI=1/2C12H24O2.2C4H9.Sn/c2*1-2-3-4-5-6-7-8-9-10-11-12(13)14;2*1-3-4-2;/h2*2-11H2,1H3,(H,13,14);2*1,3-4H2,2H3;/q;;;;+2/p-2/rC32H64O4Sn/c1-5-9-13-15-17-19-21-23-25-27-31(33)35-37(29-11-7-3,30-12-8-4)36-32(34)28-26-24-22-20-18-16-14-10-6-2/h5-30H2,1-4H3
    Key: UKLDJPRMSDWDSL-PFKFAYPQAT
SMILES
  • CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC
Properties
(CH3(CH2)10CO2)2Sn((CH2)3CH3)2
Molar mass 631.570 g·mol−1
Appearance Colourless oily liquid or soft waxy crystals
Odor Fatty
Density 1.066 g/cm3
Melting point 22 to 24 °C (72 to 75 °F; 295 to 297 K)
Boiling point 205 °C at 1.3 kPa
Practically insoluble (less than 1 mg/mL at 68 °F (20 °C))
Solubility Practically insoluble in methanol
Soluble in petroleum ether, benzene, acetone, ether, carbon tetrachloride, organic esters
Vapor pressure <0.01 hPa (0.2 mmHg at 160 °C)
Refractive index (nD)
 1.4683 at 20 °C (for light at wavelength of 589.29 nm)
Viscosity 42 cP
Hazards
GHS labelling:
Danger
H341, H360FD, H372
P260, P264, P270, P280, P281, P319, P405, P501
Flash point 191 °C
Lethal dose or concentration (LD, LC):
LD50 (median dose)
  • 175 mg/kg (oral, rat)
  • 33 mg/kg (intravenous, rat)
  • 210 mg/kg (oral, mouse)
  • 100 mg/kg (oral, rabbit)
LC50 (median concentration)
 150 mg/m3 (inhalation, mouse, 2 hours)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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