2,3,5,6-四氯对苯二甲酰氯

Description

2,3,5,6-tetrachloroterephthaloyl dichloride · CAS 719-32-4 · C8Cl6O2. UNII CM96O90UX1.

Identification

CAS Registry Number	719-32-4
PubChem CID	12868
Molecular formula	C8Cl6O2
IUPAC name	2,3,5,6-tetrachlorobenzene-1,4-dicarbonyl chloride
UNII (FDA)	CM96O90UX1

Computed Descriptors

Molecular Weight	340.8
XLogP3	5.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	2
Exact Mass	339.799995
Monoisotopic Mass	337.802945
Topological Polar Surface Area	34.1
Heavy Atom Count	16
Formal Charge	0

Physical description & handling notes

• Solid; [MSDSonline]

GHS Hazard Classification

Reported hazard statements	H302 (100%), H314 (100%)

Documented Uses

• Produced as an intermediate in the manufacture of the herbicide Dimethyl tetrachloroterephthalate (DCPA); [HSDB]
• 2,3,5,6-Tetrachloroterephthaloyl chloride is formed as an intermediate in the manufacture of DCPA (dimethyl tetrachloroterephthalate) by chlorination of p-xylene, conversion of the reaction products to 2,3,5,6-tetrachloroterephthaloyl chloride, and reaction with methanol to yield the dimethyl ester.
• 1,4-Benzenedicarbonyl dichloride, 2,3,5,6-tetrachloro-: INACTIVE
• DCPA (dimethyl tetrachloroterephthalate) is produced by: ISK Biosciences, PO Box 8000, 5966 Heisley Road, Mentor,OH 44061-8000; Agricultural and Specialty Chemicals, PO Box 9637, Greens Bayou,TX 77213. Production site: Greens Bayou, TX 77213

Synonyms

2,3,5,6-Tetrachloroterephthaloyl dichloride; 719-32-4; Tetrachloroterephthaloyl chloride; 2,3,5,6-TETRACHLOROTEREPHTHALOYL CHLORIDE; Tetrachloroterephthaloyl dichloride; Tetrachloroterephthalic dichloride; Terephthaloyl chloride, tetrachloro-; Perchloroterephthaloyl chloride; 1,4-Benzenedicarbonyl dichloride, 2,3,5,6-tetrachloro-; CM96O90UX1; HSDB 5749; EINECS 211-947-6; NSC-141495; NSC 141495; 2,3,5,6-TETRACHLOROTEREPHTHALIC DICHLORIDE; 2,3,5,6-TETRACHLOROTEREPHTHALOYL CHLORIDE [HSDB]

Frequently Asked Questions

What are the CAS number and molecular formula of 2,3,5,6-tetrachloroterephthaloyl dichloride?

CAS 719-32-4; molecular formula C8Cl6O2; molecular weight — g/mol.

What other names is 2,3,5,6-tetrachloroterephthaloyl dichloride known by?

2,3,5,6-Tetrachloroterephthaloyl dichloride, 719-32-4, Tetrachloroterephthaloyl chloride, 2,3,5,6-TETRACHLOROTEREPHTHALOYL CHLORIDE, Tetrachloroterephthaloyl dichloride, Tetrachloroterephthalic dichloride.

Is 2,3,5,6-tetrachloroterephthaloyl dichloride classified as hazardous?

Hazard statements reported: H302, H314.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.