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Key Documents

8.22323

Sigma-Aldrich

Diethyl phthalate

Technipur®, for synthesis

Synonym(s):

Diethyl benzene-1,2-dicarboxylate, Ethyl phthalate, Phthalic acid diethyl ester

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About This Item

Linear Formula:
C6H4-1,2-(CO2C2H5)2
CAS Number:
Molecular Weight:
222.24
Beilstein:
1912500
MDL number:
UNSPSC Code:
12352108

grade

for synthesis

Quality Level

vapor density

7.66 (vs air)

vapor pressure

0.002 hPa ( 20 °C)
1 mmHg ( 100 °C)

autoignition temp.

854 °F

expl. lim.

0.75 %, 187 °F

refractive index

n20/D 1.502 (lit.)

pH

7-8 (20 °C in H2O)

bp

298-299 °C (lit.)

mp

-60 °C
−3 °C (lit.)

density

1.12 g/mL at 25 °C (lit.)

SMILES string

CCOC(=O)c1ccccc1C(=O)OCC

InChI

1S/C12H14O4/c1-3-15-11(13)9-7-5-6-8-10(9)12(14)16-4-2/h5-8H,3-4H2,1-2H3

InChI key

FLKPEMZONWLCSK-UHFFFAOYSA-N

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Application

Diethyl phthalate (DEP) is a phthalic anhydride ester (PAE) that can be used as a solvent in cosmetics and as a plasticizer in chemical industries. This synthetic material is widely used as a plastic additive to improve the mechanical properties, transparency, durability, longevity, and flexibility of plastics. DEP can also be used in a variety of consumer products like plastic packaging films and as a fragrance solvent, a surface lubricant in food and pharmaceutical packaging, mosquito repellents and automobile parts.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

338.0 °F - closed cup

Flash Point(C)

170 °C - closed cup


Certificates of Analysis (COA)

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Diethyl phthalate: a perspective
Kamrin MA and Mayor GH
Journal of Clinical Pharmacology, 31(5), 484-489 (1991)

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