Chlorthal-dimethyl

• CAT Number: I002400
• CAS Number: 1861-32-1
• Molecular Formula: C10H6Cl4O4
• Molecular Weight: 331.96
• Purity: ≥95%
• Solubility: 0.5 g/L in H2O
• Storage: -20°C
• IUPAC Name: dimethyl 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylate
• InChI: 1S/C10H6Cl4O4/c1-17-9(15)3-5(11)7(13)4(10(16)18-2)8(14)6(3)12/h1-2H3
• InChIKey: NPOJQCVWMSKXDN-UHFFFAOYSA-N
• SMILES: COC(=O)C1=C(C(=C(C(=C1Cl)Cl)C(=O)OC)Cl)Cl

Chlorthal-dimethyl (Cat No.: I002400) , also known as DCPA (Dimethyl tetrachloroterephthalate), is a pre-emergent herbicide used to control annual grasses and broadleaf weeds in crops like vegetables, turf, and ornamentals. It inhibits seed germination and early seedling growth by disrupting cell division. Unlike post-emergent herbicides, it must be applied before weeds emerge. It has low toxicity to humans and animals but persists in soil, raising environmental concerns. DCPA is mainly used in agriculture and landscaping for selective weed management while preserving desired plants.