120871

Terephthaloyl chloride

≥99%, flakes

• Synonym(s): Terephthalic acid chloride, Terephthaloyl dichloride
• Linear Formula: C₆H₄-1,4-(COCl)₂
• CAS Number: 100-20-9
• Molecular Weight: 203.02
• Beilstein: 607796
• EC Number: 202-829-5
• MDL number: MFCD00000693
• UNSPSC Code: 12352100
• eCl@ss: 39050525
• PubChem Substance ID: 24847435
• NACRES: NA.22

Properties

• vapor density: 7 (vs air)
• 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
• 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

Description

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

Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H314,H331,H335
• Precautionary Statements: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 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
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves