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120871

Terephthaloyl chloride

≥99%, flakes

Synonym(s):

Terephthalic acid chloride, Terephthaloyl dichloride

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About This Item

Linear Formula:
C6H4-1,4-(COCl)2
CAS Number:
100-20-9
Molecular Weight:
203.02
NACRES:
NA.22
PubChem Substance ID:
24847435
eCl@ss:
39050525
UNSPSC Code:
12352100
EC Number:
202-829-5
MDL number:
MFCD00000693
Beilstein/REAXYS Number:
607796
Assay:
≥99%
Form:
flakes
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vapor density

7 (vs air)

Quality Level

200

vapor pressure

0.02 mmHg ( 25 °C)

assay

≥99%

form

flakes

bp

266 °C (lit.)

mp

79-81 °C (lit.)

solubility

ethanol: soluble 100 mg/mL, clear, colorless

functional group

acyl chloride

SMILES string

ClC(=O)c1ccc(cc1)C(Cl)=O

InChI

1S/C8H4Cl2O2/c9-7(11)5-1-2-6(4-3-5)8(10)12/h1-4H

InChI key

LXEJRKJRKIFVNY-UHFFFAOYSA-N

General description

Terephthaloyl chloride is a highly reactive acid chloride derived from terephthalic acid. It is used as a cross-linking agent in polymer synthesis. Terephthaloyl chloride undergoes condensation reaction with difunctional α,ω-diaminopolystyrene to yield chain-extended polystyrene containing amide bonds along the polymer backbone. It undergoes interfacial reaction with bovine serum albumin to form thin cross-linked films.

Application

Terephthaloyl chloride was used in the synthesis of liquid crystalline thermosets by thermal cyclotrimerization of dicyanate compounds of ring substituted bis(4-hydroxyphenyl) terepthalates.

Legal Information

DuPont product

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 1

flash_point_f

356.0 °F - closed cup

flash_point_c

180 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

危险化学品

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