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525189

Sigma-Aldrich

Dioctyl terephthalate

≥96%

Synonym(s):

Bis(2-ethylhexyl) terephthalate

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About This Item

Linear Formula:
C6H4-1,4-[CO2CH2CH(C2H5)(CH2)3CH3]2
CAS Number:
6422-86-2
Molecular Weight:
390.56
EC Number:
229-176-9
MDL number:
MFCD00072256
UNSPSC Code:
12162002
PubChem Substance ID:
24874478
NACRES:
NA.23

vapor pressure

1 mmHg ( 217 °C)

Assay

≥96%

refractive index

n20/D 1.49 (lit.)

bp

400 °C (lit.)

mp

−48 °C

density

0.986 g/mL at 25 °C (lit.)

SMILES string

CCCCC(CC)COC(=O)c1ccc(cc1)C(=O)OCC(CC)CCCC

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

InChI key

RWPICVVBGZBXNA-UHFFFAOYSA-N

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General description

Dioctyl terephthalate (DOTP) is a plasticizer that can be prepared by alcoholysis of polyethylene terephthalate (PET) with isooctyl alcohol.

Application

DOTP can form a composite blend with polyaniline (PANI)-ethyene dimethacrylate (EDMA), which can be used in the fabrication of conductive films. It may also be used as a plasticizer with polyvinyl chloride (PVC) to form solutions for artificial intravessel plaque.

Storage Class Code

10 - Combustible liquids

WGK

awg

Flash Point(F)

413.6 °F - closed cup

Flash Point(C)

212 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Enhancement of Electrical Conductivity and Tensile Properties of Conductive Poly (vinyl Chloride)/Poly (ethylene Oxide)/Polyaniline Conductive Composite Films: Effect of Polyaniline Loading and Ethylene Dimethacrylate.
Yazid MIM, et al.
Journal of Physical Science, 29(2), 178-183 (2018)
Alcoholysis of PET to produce dioctyl terephthalate by isooctyl alcohol with ionic liquid as cosolvent
Chen J, et al.
Polymer Degradation and Stability, 107, 178-183 (2014)
Effect of ferric chloride on the electrical conductivity and characterization of polyethylene oxide/polyvinyl chloride/polyaniline conductive films
AIP Conference Proceedings, 1985(1), 020002-020002 (2018)
E D Barber et al.
Xenobiotica; the fate of foreign compounds in biological systems, 24(5), 441-450 (1994-05-01)
1. The hydrolysis of di(2-ethylhexyl) terephthalate (DEHT) and di(2-ethylhexyl) phthalate (DEHP) were studied using rat gut homogenate fractions in vitro. Both isomers were hydrolysed by the intestinal fraction; however, DEHP was hydrolysed to 2-ethylhexanol (2-EH) and mono(2-ethylhexyl) phthalate (MEHP) in
James A Deyo
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 46(3), 990-1005 (2007-12-14)
The carcinogenicity and chronic toxicity potential of di-2-ethylhexyl terephthalate (DEHT) was assessed in F-344 rats (50/sex/dose) by dietary exposure for 104 weeks. Exposure levels of 0, 1500, 6000 or 12,000 ppm resulted in average daily doses of 79, 324 and
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