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DCPA - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information

Note: See Working with the Information on this Page section below for important notes about this data.

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Chemical ID
 Identifying information, including synonyms, ID numbers, use type, chemical classification, a link to a list of all products containing this chemical and a list of the top crops this pesticide is used on in California.
Poisoning Symptoms
 Signs and symptoms of poisoning, first aid, and links to treatment information for this chemical.
Toxicity
 Link to information on toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity.
Regulatory
 Links to world-wide registration status as well as regulatory information for the U.S. and California.
Water
 Water quality standards and physical properties affecting water contamination potential.
Ecotoxicity
 Toxicity to aquatic organisms.
Related Chems
 List of chemicals in the same family, including breakdown products, salts, esters, isomers, and other derivatives.
 

Chemical Identification and Use for DCPA
Basic Identification Information About This Chemical
Chemical Name: DCPA
CAS Number: 1861-32-1
U.S. EPA PC Code: 078701
CA DPR Chem Code: 179
Molecular Weight: 163.003
Molecular Structure:
Use Type: Herbicide
Chem Class: Alkyl Phthalate
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type

See the Global Pesticide Resources page for many additional links.
Historical Use of this Chemical
Top five crops and sites for this pesticide in California
Broccoli   Onions   Cabbage   Cauliflower   Bok Choy  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
00179 (CA DPR Chem Code Text) , 00179 (CA DPR Chem Code) , 078701 (US EPA PC Code Text) , 1,4-Benzenedicarboxylic acid, 2,3,5,6-tetrachloro-, dimethyl ester , 134 (PDP Code) , 179 (CA DPR Chem Code) , 179 (CA DPR Chem Code) , 1861-32-1 (CAS number) , 1861321 , 1861321 (CAS number without hyphens) , 78701 (US EPA PC Code) , CHLORTHAL (PRESENT AS DIMETHYL ESTER) , Chlorthal dimethyl , Chlorthal-dimethyl , Chlorthal-methyl , Clortal-dimet?lico , DAC 893 , Dacthal , Dacthal (DCPA) , Dacthalor , DCPA , DCPA , DCPA , DCPA (or chlorthal-dimethyl?) , DCPA, CHLORTHAL, CLORTHAL-DIMETHYL , Decimate, component of (with 019101) , Dimethyl 2,3,5,6-tetrachloro-1,4-benzenedicarboxylate , Dimethyl tetrachloroterephthalate , Fatal , Terephthalic acid, 2,3,5,6-tetrachloro-, dimethyl ester
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of DCPA Poisoning

NOTE! There may be other diseases and chemicals that have similar symptoms.

If you have a poisoning emergency in the United States call 1-800-222-1222.
If the victim has collapsed or is unconscious, call 911.

DCPA is a Alkyl Phthalate compound.

Report a Poisoning
Symptoms of Poisoning with Alkyl Phthalate Compounds
Find Products Containing this Chemical

- Strongly irritating to eyes and mucous membranes.
- Low systemic toxicity, but ingestions of large doses cause gastrointestinal irritation, central nervous system depression, coma and hypotension.

Source for Group Symptoms: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 8.
Treatment for Alkyl Phthalate Poisoning

See: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 8, page 74.

 
Symptoms of DCPA Exposure

- Moderate irritation of eyes.

Source for Symptoms: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 13. March 1999. (EPA R&M)

First Aid for DCPA Poisoning

For Inhalation
- Remove to fresh air. Administer oxygen if breathing difficulty. Administer CPR if cardiac arrest occurs.
For Skin
- Flush with water for 15-20 minutes. If no burns have occurred, use soap and water to cleanse skin.
For Eyes
- Flush with water for 15-20 minutes.
For Ingestion
- Induce vomiting. Give 1 to 2 glasses of water. DonŐt administer liquids/induce vomiting if unconscious or convulsing.
Get medical aid.

Source for First Aid: Material Safety Data Sheet. Chem Service Inc., West Chester, PA. September 1990. (MSDS)

Treatment for DCPA Poisoning

See: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA (EPA R&M)

 
 

Toxicity Information for DCPA

  Note: Information for many chemicals is incomplete and may not be fully representative of effects on humans. Why?

Summary Toxicity Information

PAN Bad Actor
Chemical 1 		Acute
Toxicity 2 		Carcinogen Cholinesterase
Inhibitor 		Ground
Water Contaminant 		Developmental or
Reproductive Toxin 		Endocrine
Disruptor
 Not Acutely Toxic Possible No
 
Indicates high toxicity in the given toxicological category. Indicates no available weight-of-the-evidence summary assessment. For additional information on toxicity from scientific journals or registration documents, see the "Additional Resources for Toxicity " section of the chemical detail page.
1. PAN Bad Actors are chemicals that are one or more of the following: highly acutely toxic, cholinesterase inhibitor, known/probable carcinogen, known groundwater pollutant or known reproductive or developmental toxicant. NOTE! Because there are no authoritative lists of Endocrine Disrupting (ED) chemicals, EDs are not yet considered PAN Bad Actor chemicals.
2. The acute toxicity reported on this page is of the pure chemical ingredient only and may not reflect the acute toxicity of individual pesticide products. To view acute toxicity of individual products, click on 'View Products' link in the 'Chemical Identification' section above.

Additional Resources about the Toxicity of this Chemical

See the Global Pesticide Resources page for many additional links.

Detailed Toxicity Information
Acute Toxicity 2
 DCPA
WHO Acute Hazard
TRI Acute Hazard
Material Safety Data Sheets
Acute rating from U.S. EPA product label
U.S. NTP Acute Toxicity Studies
      View Studies
Cholinesterase Inhibitor		 U, Unlikely to be Hazardous
Not Listed
Not Available
No Consensus Value
No NTP Studies

No
2. The acute toxicity reported on this page is of the pure chemical ingredient only and may not reflect the acute toxicity of individual pesticide products. To view acute toxicity of individual products, click on 'View Products' link in the 'Chemical Identification' section above.
 
Cancer Information
 DCPA
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen		 Not Listed
Not Listed
Not Listed
C, Possible
Not Listed
 
Endocrine Disruption
 DCPA
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list		 Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
 
Reproductive and Developmental Toxicity
 DCPA
CA Prop 65 Developmental Toxin
U.S. TRI Developmental Toxin
CA Prop 65 Female Reproductive Toxin
CA Prop 65 Male Reproductive Toxin
U.S. TRI Reproductive Toxin 		Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
 
Chemicals of Special Concern
 DCPA
PAN Bad Actors
PAN Dirty Dozen list		 Yes
Not Listed
 

Water Pollution Potential and Criteria for DCPA

Water Pollution Potential

PAN Ground Water Contaminant Rating Known
 
Physical Property Data Related to Water Contamination Potential
Water Solubility (Avg, mg/L)
Adsorption Coefficient (Koc)
Hydrolysis Half-life (Avg, Days)
Aerobic Soil Half-life (Avg, Days)
Anaerobic Soil Half-life (Avg, Days) 		0.50
3,200
-
-
- 		 
 

Water Standards and Criteria
U.S. National Drinking Water Standards and Health Criteria
 µg/L unless noted  
Maximum Contaminant Level (MCL) 0  
Maximum Contaminant Level Goal (MCLG)  
One Day Exposure Health Advisory Level 2,000  
Ten Day Exposure Health Advisory Level 2,000  
Lifetime Exposure Health Advisory Level 70.0  
Reference Dose 10.0 (µg/kg/day)  
U.S. Drinking Water Equivalent Level 350.0  
Concentration with Lifetime Cancer Risk of 1 in 10,000  
 

Regulatory Information for DCPA

International Regulatory Status
Registration in Selected Countries Registration in Selected Countries:
DCPA
 
UNEP Persistent Organic Pollutant (POP)
UNEP Prior Informed Consent Chemical (PIC)
WHO Obsolete Pesticide		 Not Listed
Not Listed
Not Listed
 

U.S. and California Regulatory Status
U.S. EPA Registered
U.S. EPA Hazardous Air Pollutant
U.S. EPA Minimum Risk Pesticide (25b list)

CA Registered
CA Groundwater Contaminant
CA Toxic Air Contaminant 		Yes
Not Listed
No

Yes
Not Listed
In Evaluation
 

Maximum Tolerance and Residue Levels
Codex Alimentarius
   (UN FAO Maximum Residue Limits)
U.S. Maximum Tolerance Levels
European Union Maximum Residue Levels 		Go to web site

Go to web site
Go to web site
 

Ecotoxicity for DCPA

Note! Information for many chemicals is incomplete and may not be fully representative of effects on the environment. Why? Click on underlined terms for definitions and additional information.

Aquatic Ecotoxicity
All Toxic Effects for Organism Group
Organism Group Effects Noted
Annelida Mortality
AquaticPlants Mortality, Population
Crustaceans Mortality
Fish Mortality
Insects Intoxication
Molluscs Growth, Morphology
Phytoplankton Biochemistry, Population
Zooplankton Intoxication, Mortality
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Annelida Not Acutely Toxic Not Acutely Toxic
Fish Slightly Toxic Not Acutely Toxic to Slightly Toxic
Zooplankton Slightly Toxic Slight Toxicity
View All Acute Summaries
 

Terrestrial Ecotoxicity
Summary of Acute Toxicity for Organism Group

Sorry, no honeybee acute toxicity data available for this chemical. Try related chemicals.

Note: Population-level effects on honeybees may occur even if a pesticide has low acute toxicity. For example, certain pesticides interfere with honeybee reproduction, ability to navigate, or temperature regulation, any of which can have an effect on long-term survival of honeybee colonies. The neonicotinoids, pyrethroids and keto-enol pesticides are some types of pesticides causing one or more of these effects.
Honeybee Chronic Toxicity

Sorry, no honeybee chronic toxicity data available for this chemical. Try related chemicals.

Related Chemicals for DCPA
CAS Number Relation Reason Chemical Name Chem Detail Registration Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
1861-32-1 Parent P DCPA View View View View Herbicide Yes Yes
Related 5a DCPA acid metabolites View View View View Breakdown product No Not Listed
887-54-7 Related 5a DCPA monoacid View View View View Breakdown product No Not Listed
Related 5a Total chlorthal dimethyl metabolites View View View View Breakdown product No Not Listed
2136-79-0 Related 5a TPA View View View View Breakdown product No Not Listed
 
Working with the Information on this Page

Click on underlined terms for definitions or go to the Pesticide Tutorial overview page.

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* Data marked with an asterisk indicates that this chemical is not explicitly listed on the corresponding list. Instead, it belongs to a group of chemicals that IS designated on the list. For example, if an agency assigns a classification of reproductive toxicant to "mercury compounds", that classification is applied to all mercury compounds in the PAN Pesticide database, which are then marked with an asterisk.

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Citation: Kegley, S.E., Hill, B.R., Orme S., Choi A.H., PAN Pesticide Database, Pesticide Action Network, North America (San Francisco, CA, 2010), http:www.pesticideinfo.org.
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