Bis(2-ethylhexyl) terephthalate

Bis(2-ethylhexyl) terephthalate
Names
	IUPAC name Bis(2-ethylhexyl) benzene-1,4-dicarboxylate
	Other names Dioctyl Terephthalate (archaic); Bis(2-ethylhexyl) terephthalate; Di(ethylhexyl) terephthalate; 1,4-Benzenedicarboxylic acid bis(2-ethylhexyl) ester
Identifiers
CAS Number	6422-86-2 ;
3D model (JSmol)	Interactive image;
Abbreviations	DEHT, DOTP
ChemSpider	21471;
ECHA InfoCard	100.026.524
EC Number	229-176-9;
MeSH	C053316
PubChem CID	22932;
UNII	4VS908W98L ;
CompTox Dashboard (EPA)	DTXSID7027625 ;
	InChI InChI=1S/C24H38O4/c1-5-9-11-19(7-3)17-27-23(25)21-13-15-22(16-14-21)24(26)28-18-20(8-4)12-10-6-2/h13-16,19-20H,5-12,17-18H2,1-4H3;
	SMILES O=C(OCC(CC)CCCC)c1ccc(C(=O)OCC(CC)CCCC)cc1;
Properties
Chemical formula	C24H38O4
Molar mass	390.564 g·mol−1
Appearance	Clear viscous liquid
Density	0.984 g/mL
Melting point	−63.5 °C
Boiling point	400 °C (752 °F; 673 K)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Non-toxic
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5000 mg/kg (rats, orally)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Bis(2-ethylhexyl) terephthalate commonly abbreviated DEHT (Dioctyl terephthalate or DOTP), is an organic compound with the formula C₆H₄(CO₂C₈H₁₇)₂. It is a diester of terephthalic acid and the branched-chain 2-ethylhexanol, which is often generically referred to as octyl. This colorless viscous liquid is used for softening PVC plastics and is known for chemical similarity to general purpose phthalates such as DEHP and DINP, but without any negative regulatory pressure. It possesses very good plasticizing properties and may be used as a direct replacement for DEHP and DINP in many applications.