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2,4,5-T - 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 2,4,5-T
Basic Identification Information About This Chemical
Chemical Name: 2,4,5-T
CAS Number: 93-76-5
U.S. EPA PC Code: 082001
CA DPR Chem Code: 639
Molecular Weight: 255.49
Use Type: Herbicide
Chem Class: Chlorophenoxy acid or ester
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type

See the Global Pesticide Resources page for many additional links.
 
Other Names for this Chemical
About Chemical Synonyms
(2,4,5-trichlorophenoxy)acetic acid , 00639 (CA DPR Chem Code Text) , 00639 (CA DPR Chem Code) , 082001 (US EPA PC Code Text) , 2 4 5 T , 2 4 5-T , 2,4,5 T , 2,4,5-T , 2,4,5-T (Trichlorophenoxyacetic acid) , 2,4,5-Trichlorophenoxyacetic acid , 2.4.5 T , 245 T , 245,T , 245T , 312 (PDP Code) , 639 (CA DPR Chem Code) , 639 (CA DPR Chem Code) , 82001 (US EPA PC Code) , 93-76-5 (CAS number) , 93765 , 93765 (CAS number without hyphens) , Acetic acid, (2,4,5,-trichlorophenoxy)- , BCF-Bushkiller , Brush rhap , Brush-off 445 low volatile brush killer , Brushtox , Co-Op Concentrated 2,4,5-T , Dacamine , Dacamine 4T , Debroussaillant Concentre , Debroussaillant Super Concentre , Ded-Weed , Ded-weed brush killer , Ded-weed lv-6 brush kil and t-5 brush kil , Dinoxol , Envert-T , Estercide t-2 and t-245 , Esteron , Esteron 245 , Esteron Brush Killer , Fence rider , Forron , Forst U 46 , Fortex , Fruitone A , Inverton 245 , Line rider , Phenoxyacetic acid, 2,4,5-trichloro- , Phortox , Reddon , Reddox , Spontox , Tippon , Tormona , Transamine , Tributon , Trichlorophenoxy acetic acid , Trinoxol , Trioxone , Veon , Veon 245 , Verton 2T , Visko Rhap low volatile ester , Weedone
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of 2,4,5-T 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.

2,4,5-T is a Chlorophenoxy compound.

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

- Irritation of skin, eyes and respiratory tract.
- Inhalation may cause burning sensation in nasopharynx and chest, coughing, and/or dizziness.
- Headache, vomiting, diarrhea.
- Confusion, bizarre or aggressive behavior.
- Kidney failure, increased heart rate.
- Metabolic acidosis resulting in peculiar odor on breath.

Source for Group Symptoms: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 9.
Treatment for Chlorophenoxy Poisoning

See: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 9, page 96.

 
Symptoms of 2,4,5-T 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  
NOTE! PREVENT DISPERSION OF DUST! STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

Route of Exposure

Symptoms

First Aid
Inhalation Cough. Sore throat. Fresh air rest. Refer for medical attention.
Skin Redness. See Notes. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Diarrhoea. Drowsiness. Headache. Nausea. Unconsciousness. Vomiting. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Notes for ICSC Information
Temperature of decomposition unknown in literature. Commercial products may contain dioxin which may cause characteristic health effects (chloracne liver changes). If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s). Carrier solvents used in commercial formulations may change physical and toxicological properties. The recommendations on this card also apply to esters of 245-Trichlorophenoxyacetic acid. Esterone 245 Trioxone and Weedone are trade names.
 

Toxicity Information for 2,4,5-T

  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 Listed Moderate Possible No
Suspected
 
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
 2,4,5-T
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

Moderately Toxic

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
 2,4,5-T
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen		 2B, Possible
Not Listed
Not Listed
Not Listed
Not Listed
 
Endocrine Disruption
 2,4,5-T
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list		 Probable
Yes
Yes
Not Listed
Not listed
Yes
 
Reproductive and Developmental Toxicity
 2,4,5-T
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
 2,4,5-T
PAN Bad Actors
PAN Dirty Dozen list		 Not Listed
Yes
 

Water Pollution Potential and Criteria for 2,4,5-T

Water Pollution Potential

PAN Ground Water Contaminant Rating Insufficient Data
 

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 800.0  
Ten Day Exposure Health Advisory Level 800.0  
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  
WHO Water Quality Criteria
Concentration (μg/l unless otherwise noted) 9.0
 

Regulatory Information for 2,4,5-T

International Regulatory Status
Registration in Selected Countries Registration in Selected Countries:
2,4,5-T
 
UNEP Persistent Organic Pollutant (POP)
UNEP Prior Informed Consent Chemical (PIC)
WHO Obsolete Pesticide
Yes
Yes
 

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 		No
Not Listed
No

No
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 2,4,5-T

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
Cnidaria Growth, Physiology, Reproduction
Crustaceans Behavior, Mortality
Echinoderms Development, Mortality, Physiology
Fish Accumulation, Development, Growth, Mortality, No Effect Coded
Insects Development, Mortality
Molluscs Accumulation, Growth, Morphology, Mortality
Phytoplankton Accumulation, Biochemistry, Cell(s), Physiology, Population
Zooplankton Accumulation, Mortality, Population, Reproduction
~ Un-Assigned Population
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Crustaceans Slightly Toxic
Fish Slightly Toxic Slight to High Toxicity
Insects Slightly Toxic Slight Toxicity
Zooplankton Slightly Toxic Not Acutely Toxic to High 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 2,4,5-T
CAS Number Relation Reason Chemical Name Chem Detail Registration Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
93-76-5 Parent P 2,4,5-T View View View View Herbicide No Not Listed
1928-47-8 Related 1 2,4,5-T, 2-ethylhexyl ester View View View View Herbicide No Not Listed
53535-37-8 Related 1 2,4,5-T, alkylamine salt View View View View Herbicide No Not Listed
2545-59-7 Related 1 2,4,5-T, butoxyethanol ester View View View View Herbicide No Not Listed
93-79-8 Related 1 2,4,5-T, butyl ester View View View View Herbicide No Not Listed
93-80-1 Related 2 2,4,5-T, butyric acid View View View View Herbicide No Not Listed
6369-97-7 Related 1 2,4,5-T, dimethylamine salt View View View View Herbicide No Not Listed
53404-84-5 Related 1 2,4,5-T, dodecylamine salt View View View View Herbicide No Not Listed
25168-15-4 Related 1 2,4,5-T, isooctyl ester View View View View Herbicide No Not Listed
53404-87-8 Related 1 2,4,5-T, N-oleyl-1,3-propylenediamine salt View View View View Herbicide No Not Listed
1928-48-9, 7173-98-0 Related 1 2,4,5-T, propylene glycol butyl ether ester View View View View Herbicide No Not Listed
2008-46-0 Related 1 2,4,5-T, triethylamine salt View View View View Herbicide No Not Listed
69462-12-0 Related 1 2,4,5-trichlorophenoxyacetic acid, 2-ethyl-4-methylpentyl ester View View View View Herbicide No Not Listed
53404-85-6 Related 1 2,4,5-trichlorophenoxyacetic acid, alkyl(C13) amine salt View View View View Herbicide No Not Listed
120-39-8 Related 1 2,4,5-trichlorophenoxyacetic acid, amyl ester View View View View Herbicide No Not Listed
1928-58-1 Related 1 2,4,5-trichlorophenoxyacetic acid, butoxyethoxypropanol ester View View View View Herbicide No Not Listed
53404-86-7 Related 1 2,4,5-trichlorophenoxyacetic acid, diethylethanolamine salt View View View View Herbicide No Not Listed
4938-72-1 Related 1 2,4,5-trichlorophenoxyacetic acid, isobutyl ester View View View View Herbicide No Not Listed
93-78-7 Related 1 2,4,5-trichlorophenoxyacetic acid, isopropyl ester View View View View Herbicide No Not Listed
55256-33-2 Related 1 2,4,5-trichlorophenoxyacetic acid, N,N-dimethyl oleyl-linoleyl amine salt View View View View Herbicide No Not Listed
53404-88-9 Related 1 2,4,5-trichlorophenoxyacetic acid, N,N-dimethyllinoleylamine salt View View View View Herbicide No Not Listed
53404-89-0 Related 1 2,4,5-trichlorophenoxyacetic acid, N,N-dimethyloleylamine salt View View View View Herbicide No Not Listed
55491-33-3 Related 1 2,4,5-trichlorophenoxyacetic acid, pentyl ester View View View View Herbicide No Not Listed
13560-99-1 Related 1 2,4,5-trichlorophenoxyacetic acid, sodium salt View View View View Herbicide No Not Listed
53535-32-3 Related 1 2,4,5-trichlorophenoxyacetic acid, tripropylene glycol isobutyl ether ester View View View View Herbicide No Not Listed
8015-35-8 Related 13 2,4-D with 2,4,5-T View View View View Herbicide No Not Listed
39277-47-9 Related 13 Butyl 2,4-D with butyl 2,4,5-T View View View View Herbicide No Not Listed
53535-31-2 Related 1 Dipropylene glycol isobutyl ether 2,4,5-trichlorophenoxyacetate View View View View Herbicide No Not Listed
51839-28-2 Related 13 Isooctyl 2,4-D with isooctyl 2,4,5-T View View View View Herbicide No Not Listed
2630-16-2 Related 1 Nonyl 2,4,5-T View View View View Herbicide No Not Listed
55617-56-6 Related 13 Nonyl 2,4-D with nonyl 2,4,5-T View View View View Herbicide No Not Listed
53466-86-7 Related 1 Propylene glycol isobutyl ether 2,4,5-trichlorophenoxyacetate View View View View Herbicide No Not Listed
Related 1 Trichlorophenoxyacetic acid, alkyl (C3-C7) ester View View View View Herbicide No Not Listed
Related 1 Trichlorophenoxyacetic acid, triethanolamine salt View View View View Herbicide No Not Listed
 
Working with the Information on this Page

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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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