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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)

Quality Level

100

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.

WGK

awg

Flash Point(F)

closed cup

Flash Point(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)
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)
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
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
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