PAN Pesticides Database - Chemicals

Diethyl phosphate - 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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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.
Signs and symptoms of poisoning, first aid, and links to treatment information for this chemical.
Link to information on toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity.
Links to world-wide registration status as well as regulatory information for the U.S. and California.
Water quality standards and physical properties affecting water contamination potential.
Toxicity to aquatic organisms.
List of chemicals in the same family, including breakdown products, salts, esters, isomers, and other derivatives.

Chemical Identification and Use for Diethyl phosphate

Basic Identification Information About This Chemical
Chemical Name: Diethyl phosphate
CAS Number: 598-02-7
U.S. EPA PC Code:
CA DPR Chem Code:
Molecular Weight: 154.1
Use Type: Breakdown product
Chem Class: Unclassified
View Related Chemicals
Additional Resources About This Chemical Class and Use Type
Other Names for this Chemical
About Chemical Synonyms
2,5-dichloro-alpha-(chloromethylene)benzyl diethyl phosphate breakdown product , 598-02-7 (CAS number) , 598027 (CAS number without hyphens) , Acethion breakdown product , Acetoxon breakdown product , Akton breakdown product , Amiton breakdown product , Amiton oxalate breakdown product , Athidathion breakdown product , Azethion breakdown product , Azinphos-ethyl breakdown product , Bromophos-ethyl breakdown product , Butathiofos breakdown product , Carbophenothion breakdown product , Chlorethoxyphos breakdown product , Chlorfenvinphos breakdown product , Chlorphoxim breakdown product , Chlorprazophos breakdown product , Chlorpyrifos breakdown product , Chlorpyrifos oxygen analog breakdown product , Chlorthiophos breakdown product , Chlorthiophos II breakdown product , Chlorthiophos III breakdown product , Coumaphos breakdown product , Coumithioate breakdown product , Cyanthoate breakdown product , Demeton breakdown product , Demeton-O breakdown product , Demeton-S breakdown product , DEP , Dialifor breakdown product , Diazinon breakdown product , Diazoxon breakdown product , Dichlofenthion breakdown product , Diethyl phosphate , Diethyldithio phosphate breakdown product , Diethylphosphate , Diethylphosphoric acid , Diethylthio phosphate breakdown product , Dioxathion breakdown product , Disulfoton breakdown product , Disulfoton sulfone breakdown product , Disulfoton sulfoxide breakdown product , Ethion breakdown product , Ethion, O-analog breakdown product , Fensulfothion breakdown product , Isazophos breakdown product , Isoxathion breakdown product , Mecarbam breakdown product , Miral breakdown product , Naphthalophos breakdown product , O,O-diethyl O-naphthaloximido phosphorothioate breakdown product , O,O-diethyl phosphoro chloridothionate breakdown product , O,O-Diethyl S-(4,6-dimethyl-2-pyrimidinyl) phosphorodithioate breakdown product , O,O-diethyl-O-phenyl phosphoro thioate breakdown product , Paraoxon breakdown product , Parathion breakdown product , Phenkapton breakdown product , Phorate breakdown product , Phosalone breakdown product , Phosphoric acid, diethyl ester , Phoxim breakdown product , Pirimiphos ethyl breakdown product , Primidophos breakdown product , Propoxon breakdown product , Prothidathion breakdown product , Prothion breakdown product , Prothoate breakdown product , Pyrazophos breakdown product , Pyridiphenthion breakdown product , Quinalphos breakdown product , Quinothion breakdown product , Sulfotep breakdown product , TEPP breakdown product , Terbufos breakdown product , Terbufos sulfone breakdown product , Terbufos sulfoxide breakdown product , Thionazin breakdown product , Thionazin, O-analog breakdown product , Triazophos breakdown product
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products

Signs and Symptoms of Diethyl phosphate 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.

Sorry! No symptoms for this chemical or chemical group are available. See related chemicals for possible additional information.


Toxicity Information for Diethyl phosphate

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

Summary Toxicity Information

PAN Bad Actor
Carcinogen Cholinesterase
Water Contaminant
Developmental or
Reproductive Toxin
Not Listed
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.

Detailed Toxicity Information

Acute Toxicity 2
Diethyl phosphate
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
Not Listed
Not Listed
Not Available
No Consensus Value
No NTP Studies

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
Diethyl phosphate
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Endocrine Disruption
Diethyl phosphate
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
Diethyl phosphate
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
Diethyl phosphate
PAN Bad Actors
PAN Dirty Dozen list
Not Listed
Not Listed

Water Pollution Potential and Criteria for Diethyl phosphate

Water Pollution Potential

PAN Ground Water Contaminant Rating Insufficient Data

Sorry, no water quality standards or criteria have been established for this chemical by the U.S. or Canadian governments; however, there may be criteria established for related chemicals.


Regulatory Information for Diethyl phosphate

International Regulatory Status

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
Not Listed

Not Listed
Not Listed

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 Diethyl phosphate

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
Fish Mortality
Zooplankton Intoxication
View All Aquatic Ecotoxicity Studies and References
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Fish Not Acutely Toxic Not Acutely Toxic
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 Diethyl phosphate

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
598-02-7 Parent P Diethyl phosphate View View View Breakdown product No Not Listed
298-06-6 Related 2 Diethyldithio phosphate View View View Breakdown product No Not Listed
2465-65-8, 5871-17-0 Related 2 Diethylthio phosphate 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.

Any underlined term with a book icon has additional information.

* 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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