Dimethyl phthalate

Dimethyl phthalate[1][2]pl
Names
	Preferred IUPAC name Dimethyl benzene-1,2-dicarboxylate
	Other names Dimethyl phthalate
Identifiers
CAS Number	131-11-3 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL323348 ;
ChemSpider	13837329 ;
ECHA InfoCard	100.004.557
KEGG	C11233 ;
PubChem CID	8554;
UNII	08X7F5UDJM ;
CompTox Dashboard (EPA)	DTXSID3022455 ;
	InChI InChI=1S/C10H10O4/c1-13-9(11)7-5-3-4-6-8(7)10(12)14-2/h3-6H,1-2H3 Key: NIQCNGHVCWTJSM-UHFFFAOYSA-N ; InChI=1/C10H10O4/c1-13-9(11)7-5-3-4-6-8(7)10(12)14-2/h3-6H,1-2H3 Key: NIQCNGHVCWTJSM-UHFFFAOYAF;
	SMILES O=C(OC)c1ccccc1C(=O)OC;
Properties
Chemical formula	C10H10O4
Molar mass	194.184 g/mol
Appearance	Colorless oily liquid
Odor	slight aromatic odor[2]
Density	1.19 g/cm3
Melting point	2 °C (36 °F; 275 K)
Boiling point	283 to 284 °C (541 to 543 °F; 556 to 557 K)
Solubility in water	0.4% (20°C)[2]
Vapor pressure	0.01 mmHg (20°C)[2]
Pharmacology
ATC code	P03BX02 (WHO) QP53GX02 (WHO)
Hazards
Flash point	146 °C (295 °F; 419 K)
Autoignition; temperature	460 °C (860 °F; 733 K)
Explosive limits	0.9%-?[2]
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	6900 mg/kg (rat, oral); 1000 mg/kg (rabbit, oral); 2400 mg/kg (guinea pig, oral); 6800 mg/kg (rat, oral); 6800 mg/kg (mouse, oral); 4400 mg/kg (rabbit, oral); 2400 mg/kg (guinea pig, oral)[3]
LCLo (lowest published)	9630 mg/m3[3]
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 5 mg/m3[2]
REL (Recommended)	TWA 5 mg/m3[2]
IDLH (Immediate danger)	2000 mg/m3[2]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Dimethyl phthalate is an organic compound with molecular formula (C₂H₃O₂)₂C₆H₄. The methyl ester of phthalic acid, it is a colorless liquid that is soluble in organic solvents.

Dimethyl phthalate is used as an insect repellent for mosquitoes and flies. It is also an ectoparasiticide and has many other uses, including in solid rocket propellants, and plastics. Its LD50 is 8200 mg/kg (rats, oral).[4]

References

Dimethyl phthlate at chemicalland21.com
NIOSH Pocket Guide to Chemical Hazards. "#0228". National Institute for Occupational Safety and Health (NIOSH).
"Dimethylphthalate". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
Robert L. Metcalf “Insect Control” in Ullmann’s Encyclopedia of Industrial Chemistry” Wiley-VCH, Weinheim, 2002. doi:10.1002/14356007.a14_263

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[1] Dimethyl phthlate at chemicalland21.com

[PGCH-2] NIOSH Pocket Guide to Chemical Hazards. "#0228". National Institute for Occupational Safety and Health (NIOSH).

[IDLH-3] "Dimethylphthalate". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[Ullmann-4] Robert L. Metcalf “Insect Control” in Ullmann’s Encyclopedia of Industrial Chemistry” Wiley-VCH, Weinheim, 2002. doi:10.1002/14356007.a14_263