PAN Pesticides Database - Chemicals

Deltamethrin - 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 Deltamethrin

Basic Identification Information About This Chemical
Chemical Name: Deltamethrin
CAS Number: 52918-63-5
U.S. EPA PC Code: 097805
CA DPR Chem Code: 3010
Molecular Weight: 505.2
Use Type: Insecticide
Chem Class: Pyrethroid
View Related Chemicals
Additional Resources About This Chemical Class and Use Type
Historical Use of this Chemical
Top five crops and sites for this pesticide in California
Structural Pest Control   Almonds   Landscape   Carrots   Public Health Pest Control  
View All Crops and Sites
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code ) , (1R,3R)-3-(2,2-Dibromoethenyl)-2,2-dimethylcyclopropanecarboxylic acid (S)cyano(3-phenoxyphenyl)methyl ester , (1R,3R)-3-(2,2-Dibromovinyl)-2,2-dimethylcyclopropane carboxylic acid, (S)-alpha-cyano-3-phenoxybenzyl ester , (S)-alpha-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethyl-cyclopropanecarboxylate , (S)-alpha-Cyano-m-phenoxybenzyl (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate , 097805 (US EPA PC Code Text ) , 3010 (CA DPR Chem Code) ) , 52918-63-5 (CAS number) , 52918635 , 52918635 (CAS number without hyphens) , 612 (PDP Code) , Butoflin , Butox , cis-deltamethrin , Cyclopropanecarboxylic acid, 3-(2,2-dibromoethenyl)-2,2-dimethyl-, cyano(3-phenoxyphenyl)methyl ester, (1R-(1.alpha.(S*),3.alpha , Decamethrin , Decis , Deltamethrin , Deltamethrin (includes parent Tralomethrin) , DELTAMETHRIN (CA DPR Chem Code Text ) , Deltamethrin (Decamethrin) , deltamethrine , Deltametrin , Deltametrina , FMC 45498 , K-Othrin , K-Othrine dust , NRDC 161 , OMS 1998 , RU 22974 , Striker IEC insecticide (097805+121501) , Tralomethrin metabolite and 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 Deltamethrin 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.

Deltamethrin is a Pyrethroid compound.

Report a Poisoning

Symptoms of Poisoning with Pyrethroid Compounds
Find Products Containing this Chemical

- Irritation of skin and eyes.
- Irritability to sound or touch, abnormal facial sensation, sensation of prickling, tingling or creeping on skin, numbness.
- Headache, dizziness, nausea, vomiting, diarrhea, excessive salivation, fatigue.
- In severe cases: fluid in the lungs and muscle twitching may develop. Seizures may occur and are more common with more toxic cyano-pyrethroids.

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

Treatment for Pyrethroid Poisoning

See: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 8, page 88.

Symptoms of Deltamethrin Exposure from the International Chemical Safety Cards (ICSC)

Report a Poisoning

View full ICSC Cards: English   Español   Française   Chinese   Dutch   Finnish   German   Hungarian   Japanese   Swahili   Thai   Urdu  

Route of Exposure


First Aid

Inhalation Burning sensation. Cough. Dizziness. Headache. Nausea. Fresh air rest. Refer for medical attention.
Skin Redness. Burning sensation. Numbness. Tingling. Itching. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Abdominal pain. Convulsions. Unconsciousness. Vomiting (Further see Inhalation). Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
Notes for ICSC Information
Carrier solvents used in commercial formulations may change physical and toxicological properties. Decis K-Othrin Butox are trade names. Also consult publication Health and Safety Guide No. 30 Deltamethrin and Environmental Health Criteria No. 97 Deltamethrin of IPCS.

Toxicity Information for Deltamethrin

  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 Moderate Unclassifiable 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.

Detailed Toxicity Information

Acute Toxicity 2
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
II, Moderately Hazardous
Not Listed
Not Available
Moderately Toxic
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
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
3, Unclassifiable
Not Listed
Not Listed
Not Likely
Not Listed
Endocrine Disruption
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Not Listed
Not Listed
Not Listed
Not listed
Reproductive and Developmental Toxicity
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
PAN Bad Actors
PAN Dirty Dozen list
Not Listed
Not Listed

Water Pollution Potential and Criteria for Deltamethrin

Water Pollution Potential

PAN Ground Water Contaminant Rating Insufficient Data
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)

Water Standards and Criteria

WHO Water Quality Criteria
Description Unlikely to occur in drinking-water
Notes Notes: e
Canadian Water Quality Guidelines for the Protection of Aquatic Life
g/L unless noted  
Fresh Water Guidelines .0004
Salt Water Guidelines Insufficien
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
g/L unless noted  
Irrigation Water Guidelines
Livestock Water Guidelines 2.5

Regulatory Information for Deltamethrin

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

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Ecotoxicity for Deltamethrin

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
Amphibians Accumulation, Mortality, Physiology
Annelida Mortality
AquaticPlants Accumulation
Crustaceans Accumulation, Intoxication, Mortality, Population
Echinoderms Development
Fish Accumulation, Behavior, Biochemistry, Cell(s), Development, Enzyme(s), Feeding Behavior, Genetics, Growth, Histology, Injury, Intoxication, Morphology, Mortality, Physiology, Population
Insects Accumulation, Development, Feeding Behavior, Growth, Intoxication, Mortality, Population
Molluscs Accumulation, Behavior, Biochemistry, Enzyme(s), Intoxication, Morphology, Mortality, Physiology
NematodesandFlatworms Enzyme(s), Population
Phytoplankton Accumulation, Biochemistry, Population
Zooplankton Behavior, Biochemistry, Feeding Behavior, Histology, Intoxication, Morphology, Mortality, Physiology, Population, Reproduction
~ Un-Assigned Cell(s), Enzyme(s), Feeding Behavior, Mortality, Physiology, Population
View All Aquatic Ecotoxicity Studies and References
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Amphibians Highly Toxic High to Very High Toxicity
Annelida Moderately Toxic Moderate Toxicity
Crustaceans Very Highly Toxic Very Highly Toxic
Fish Moderately Toxic Slight to Very High Toxicity
Insects Very Highly Toxic Very Highly Toxic
Molluscs Not Acutely Toxic Not Acutely Toxic to High Toxicity
Zooplankton Very Highly Toxic Very Highly Toxic
~ Un-Assigned Very Highly Toxic Very Highly Toxic
View All Acute Summaries

Terrestrial Ecotoxicity

Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
HoneybeesHighly ToxicHighly Toxic
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 Deltamethrin

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
52918-63-5 Parent P Deltamethrin View View View Insecticide Yes Not Listed
120710-23-8 Related 6 (+-)-cis,trans-Deltamethrin View View View Insecticide No Not Listed
Related 5a Decamethrinic acid View View View Breakdown product No Not Listed
52820-00-5 Related 6 Deltamethrin (isomer unspecified) View View View Insecticide No Not Listed
Related 8 Deltamethrin, other related View View View Insecticide 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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