Trimethylphosphine

Trimethylphosphine
Names
	Preferred IUPAC name Trimethylphosphane
	Systematic IUPAC name Trimethylphosphane (substitutive); Trimethylphosphorus (additive)
Identifiers
CAS Number	594-09-2 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	969138
ChEBI	CHEBI:35890 ;
ChemSpider	62205 ;
ECHA InfoCard	100.008.932
EC Number	209-823-1;
MeSH	trimethyl+phosphine
PubChem CID	68983;
UNII	5FL6SQK9H3 ;
UN number	1993
CompTox Dashboard (EPA)	DTXSID00208120 ;
	InChI InChI=1S/C3H9P/c1-4(2)3/h1-3H3 Key: YWWDBCBWQNCYNR-UHFFFAOYSA-N ;
	SMILES CP(C)C;
Properties
Chemical formula	C3H9P
Molar mass	76.079 g·mol−1
Appearance	Colorless liquid
Density	735 mg cm−3
Melting point	−86 °C (−123 °F; 187 K)
Boiling point	38 to 39 °C (100 to 102 °F; 311 to 312 K)
Vapor pressure	49.9 kPa (at 20 °C)
Structure
Coordination geometry	Trigonal pyramidal
Dipole moment	1.19 Debye
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H315, H319, H335
Precautionary statements	P210, P261, P305+P351+P338
Flash point	−19 °C (−2 °F; 254 K)
Related compounds
Related compounds	PEt3; NMe3; PH3; PPh3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Trimethylphosphine is an organophosphorus compound with the formula P(CH₃)₃, commonly abbreviated as PMe₃. This colorless liquid has a strongly unpleasant odor, characteristic of alkylphosphines. The compound is a common ligand in coordination chemistry.