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Merck
CN

525189

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
NACRES:
NA.23
PubChem Substance ID:
24874478
UNSPSC Code:
12162002
EC Number:
229-176-9
MDL number:
MFCD00072256

Key Documents

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InChI key

RWPICVVBGZBXNA-UHFFFAOYSA-N

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 string

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

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.)

Quality Level

100

Related Categories

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

10 - Combustible liquids

wgk

awg

flash_point_f

413.6 °F - closed cup

flash_point_c

212 °C - closed cup

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000488103
0000488103
MKCZ3717
MKCZ3716
0000323025

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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)
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)
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)
Nicolas K Kambia et al.
Journal of applied toxicology : JAT, 39(7), 1043-1056 (2019-03-09)
Plasticizers added to polyvinylchloride used in medical devices can be released into patients' biological fluids. The substitution of di-(2-ethylhexyl)phthalate (DEHP) by alternative plasticizers is essential but their safety must be demonstrated. DEHP, di-(2-ethylhexyl)terephthalate (DEHT) and their metabolites were investigated using
U Wirnitzer et al.
Toxicology letters, 205(1), 8-14 (2011-05-28)
Di-2-ethylhexyl-terephtalate (DEHT) is a general purpose plasticizer and a structural isomer to di-2-ethylhexyl phthalate (DEHP) being known for its toxicity. Despite the fact that DEHT is used in quite a number of synthetics for medical device production including equipment for
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