Diisobutyl phthalate

Diisobutyl phthalate
Names
	Preferred IUPAC name Bis(2-methylpropyl) benzene-1,2-dicarboxylate
	Other names Diisobutyl phthalate; Di-iso-butyl phthalate; Di(i-butyl)phthalate; Diisobutyl ester of phthalic acid; 1,2-benzenedicarboxylic acid; Bis(2-methylpropyl)ester; Di(isobutyl) 1,2-benzenedicarboxylate; Isobutyl-O-phthalate; DIBP; DiBP; Palatinol IC
Identifiers
CAS Number	84-69-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:79053 ;
ChEMBL	ChEMBL1370662;
ChemSpider	6524 ;
ECHA InfoCard	100.001.412
EC Number	201-553-2;
KEGG	C15205 ;
PubChem CID	6782;
RTECS number	TI1225000;
UNII	IZ67FTN290 ;
CompTox Dashboard (EPA)	DTXSID9022522 ;
	InChI InChI=1S/C16H22O4/c1-11(2)9-19-15(17)13-7-5-6-8-14(13)16(18)20-10-12(3)4/h5-8,11-12H,9-10H2,1-4H3 Key: MGWAVDBGNNKXQV-UHFFFAOYSA-N ; InChI=1/C16H22O4/c1-11(2)9-19-15(17)13-7-5-6-8-14(13)16(18)20-10-12(3)4/h5-8,11-12H,9-10H2,1-4H3 Key: MGWAVDBGNNKXQV-UHFFFAOYAA;
	SMILES O=C(OCC(C)C)c1ccccc1C(=O)OCC(C)C;
Properties
Chemical formula	C16H22O4
Molar mass	278.348 g·mol−1
Appearance	Colorless viscous liquid
Density	1.038 g/cm3
Melting point	−37 °C (−35 °F; 236 K)
Boiling point	320 °C (608 °F; 593 K)
Solubility in water	1 mg/L at 20 °C
log P	4.11
Vapor pressure	0.01 Pa at 20 °C
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H360Df
Precautionary statements	P201, P202, P281, P308+P313, P405, P501
NFPA 704 (fire diamond)	2 1 0
Flash point	185 °C (365 °F; 458 K) c.c.
Autoignition; temperature	400 °C (752 °F; 673 K)
	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

Diisobutyl phthalate (DIBP) is a phthalate ester having the structural formula C₆H₄(COOCH₂CH(CH₃)₂)₂. It is formed by the esterification of isobutanol and phthalic anhydride. This and other phthalates are used as plasticizers due to their flexibility and durability. They are found in many industrial and personal products, such as lacquers, nail polish and cosmetics. DIBP can be absorbed via oral ingestion and dermal exposure. When it comes to excretion, DIBP is first converted into the hydrolytic monoester monoisobutyl phthalate (MIBP). The primary excretory route is urine, with biliary excretion being noted in minor amounts. DIBP has lower density and freezing point than the related compound dibutyl phthalate (DBP).