| Status: | ISO 1750 (published) |
|---|---|
| IUPAC: | tetrachloroterephthalic acid |
| CAS: | 2,3,5,6-tetrachloro-1,4-benzenedicarboxylic acid |
| Reg. No.: | 2136-79-0 |
| Formula: | C8H2Cl4O4 |
| Activity: | herbicides (phthalic acid herbicides) |
| Notes: | When this substance is used as an ester or a salt, its identity should be stated, for example 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 in 1989 as part of a rationalisation exercise. |
| Structure: |  |
| InChI: | InChI=1/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)/f/h13,15H |