Chinese: 氯酞酸French: chlorthal (n.m.)Russian: хлортал

Approval: ISO
IUPAC PIN: 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylic acid
IUPAC name: tetrachloroterephthalic acid
CAS name: 2,3,5,6-tetrachloro-1,4-benzenedicarboxylic acid
CAS Reg. No.: 2136-79-0
Formula: C8H2Cl4O4
Activity: herbicides (benzoic acid)
Notes: Derivatives include chlorthal-dimethyl [1861-32-1] (for which the name “DCPA” is approved by the Weed Science Society of America), chlorthal-monomethyl [887-54-7].
The names “chlorthal” and “chlorthal-dimethyl” were both formerly approved by ISO, but “chlorthal-dimethyl” was deleted.
Pronunciation: klor-thǎl  Guide to British pronunciation
Structure: Structural formula of chlorthal
InChI: InChI=1S/C8H2Cl4O4/c9-3-1(7(13)14)4(10)6(12)2(5(3)11)8(15)16/h(H,13,14)(H,15,16)

A data sheet from the Compendium of Pesticide Common Names