Chlorthal

Chlorthal is an herbicide.^[1] Its formula is C₈H₂Cl₄O₄. It is a derivative of terephthalic acid.^[2] The chemical is used more often in agricultural settings than it is in household weed treatment.^[3]

Quick facts Names, Identifiers ...

Chlorthal

Names
Preferred IUPAC name 2,3,5,6-tetrachloroterephthalic acid
Other names Tetrachloroterephthalic acid Perchloroterephthalic acid
Identifiers
CAS Number	2136-79-0
3D model (JSmol)	Interactive image
ChEBI	CHEBI:179164
ChemSpider	15635
ECHA InfoCard	100.203.551
EC Number	678-503-5
PubChem CID	16493
UNII	96C2WU8832
CompTox Dashboard (EPA)	DTXSID3039400
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) Key: KZCBXHSWMMIEQU-UHFFFAOYSA-N
SMILES C1(=C(C(=C(C(=C1Cl)Cl)C(=O)O)Cl)Cl)C(=O)O
Properties
Chemical formula	C8H2Cl4O4
Molar mass	303.90 g·mol−1
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319
Precautionary statements	P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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