Diethyl phthalate

Diethyl phthalate
Names
	Preferred IUPAC name Diethyl benzene-1,2-dicarboxylate
	Other names Diethyl phthalate
Identifiers
CAS Number	84-66-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:34698 ;
ChEMBL	ChEMBL388558 ;
ChemSpider	13837303 ;
ECHA InfoCard	100.001.409
KEGG	D03804 ;
PubChem CID	6781;
UNII	UF064M00AF ;
CompTox Dashboard (EPA)	DTXSID50892134, DTXSID201024388 DTXSID7021780, DTXSID50892134, DTXSID201024388 ;
	InChI InChI=1S/C12H14O4/c1-3-15-11(13)9-7-5-6-8-10(9)12(14)16-4-2/h5-8H,3-4H2,1-2H3 Key: FLKPEMZONWLCSK-UHFFFAOYSA-N ; InChI=1/C12H14O4/c1-3-15-11(13)9-7-5-6-8-10(9)12(14)16-4-2/h5-8H,3-4H2,1-2H3 Key: FLKPEMZONWLCSK-UHFFFAOYAV;
	SMILES CCOC(=O)c1ccccc1C(=O)OCC;
Properties
Chemical formula	C6H4(COOC2H5)2
Molar mass	222.240 g·mol−1
Appearance	Colourless, oily liquid
Density	1.12 g/cm3 (20 °C (68 °F; 293 K))
Melting point	−3 °C (27 °F; 270 K)
Boiling point	298–299 °C (568–570 °F; 571–572 K)
Solubility in water	1.080 g/L
log P	2.42
Vapor pressure	0.27 pascals (0.002 mmHg) (25 °C (77 °F; 298 K); 190 pascals (1.4 mmHg) (163 °C (325 °F; 436 K));
Magnetic susceptibility (χ)	−127.5×10−6 cm3/mol
Viscosity	9.500 Pa·s
Hazards
	GHS labelling:
Hazard statements	H402
Precautionary statements	P273, P501
NFPA 704 (fire diamond)	0 1 0
Flash point	170 °C (338 °F; 443 K) 101.3 kPa
Autoignition; temperature	457 °C (855 °F; 730 K)
Explosive limits	0.7%, lower (187 °C (369 °F; 460 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5591 mg/kg (rat, oral); >11181 mg/kg (rat, dermal);
LC50 (median concentration)	≥4.64 mg/L (rat, vapor, 6h)
	NIOSH (US health exposure limits):
PEL (Permissible)	None
REL (Recommended)	5 mg/m3 (TWA)
IDLH (Immediate danger)	N.D.
Related compounds
Related compounds	dimethyl phthalate; diethylhexyl phthalate; dibutyl phthalate; dioctyl phthalate;
	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

Diethyl phthalate (DEP) is a phthalate ester with the formula C₆H₄(COOC₂H₅)₂ (or C₁₂H₁₄O₄). It is a colourless liquid without significant odour but with a bitter disagreeable taste.