Description

Dacthal is a selective pre-emergent herbicide belonging to the phthalate chemical class, widely recognized for its efficacy in controlling a broad spectrum of annual grasses and broadleaf weeds. Its primary value lies in providing long-lasting residual control, making it a cornerstone for sustainable crop management programs. This product is essential for professional agricultural producers, turf managers, and horticulturalists seeking reliable weed suppression in crops like broccoli, cabbage, onions, and turfgrass.

Application

• Pre-emergent Weed Control in Brassica Crops: Applied to soil for controlling weeds in broccoli, cabbage, cauliflower, and Brussels sprouts.
• Turf and Ornamental Management: Used on established turfgrass, lawns, and ornamental plantings to prevent weed germination.
• Onion and Garlic Production: Provides selective weed control in onion, garlic, and other Allium crop fields.
• Nursery and Container Production: Incorporated into potting media or applied to container surfaces to manage weeds in ornamental plant production.
• Industrial Vegetation Management: Used in non-crop areas such as rights-of-way and around industrial sites for total vegetation control.
• Research and Development: Serves as a reference standard or active ingredient in agrochemical formulation studies.

Basic Information

Product Name	Dacthal
CAS No.	1861-32-1
Molecular Formula	C10H6Cl4O4
Molecular Weight	331.96 g/mol
Synonyms	Chlorthal-dimethyl; Dimethyl tetrachloroterephthalate; DCPA; DAC 893; Fatal; TCTP; Tetrachloroterephthalic acid dimethyl ester; 2,3,5,6-Tetrachloro-1,4-benzenedicarboxylic acid dimethyl ester
EINECS	217-464-1

Quality Control

Our Dacthal is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including assay by HPLC and confirmation of identity, to meet technical-grade specifications. A Certificate of Analysis (COA) detailing purity and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Store separately from strong oxidizers, strong bases, and foodstuffs.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Melting Point	155°C - 160°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.