- 1,4-Benzenedicarboxylic acid, 2,3,5,6-tetrachloro-dimethyl ester
- Dimethyl 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylate
- Dimethyl 2,3,5,6-Tetrachloroterephthalate
- Terephthalic acid, tetrachloro-dimethyl ester
- Tetrachloroterephthalic acid dimethyl ester
- 2,3,5,6-Tetrachloroterephthalic acid dimethyl ester
Colorless, crystalline solid.
It is presently approved for use on turf, ornamentals, strawberries, and agronomic crops including cotton, soybeans, and field beans. It is effective against smooth & hairy crabgrass, witchgrass, green & yellow foxtails, fall panicum & other annual grasses. It is also useful against certain broad-leaved weeds such as carpet weed purslane & common chickweed. It is tolerated by many crop plants.
Registry Numbers and Inventories.
S 22 24/25
Agricultural Chemical and Pesticide; Reproductive Effector
Swiss Giftliste 1
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
2.5E-7 (25 C)
Solubility in water
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Keep closed in a cool, dry place. Store only with compatible chemicals.
For laboratory use only. Do not wear contact lenses. Use in a chemical hood with protective equipment.
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
OSHA/MSHA approved respirator.
Evacuate and ventilate area. Wear appropriate protective equipment. Sweep up and place in an appropriate waste container. Wash contaminaed surfaces to remove residue.
Stable in the pure state stable to UV irradiation.
Strong oxidizing agents.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.
Nausea, vomiting and diarrhea are possible if ingested.
Cough, tachypnea, and wheezing are common after inhalation.
Redness, swelling and pain may occur.
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.