PAN Pesticides Database - Chemicals

Bentazon - 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 Bentazon

Basic Identification Information About This Chemical
Chemical Name: Bentazon
CAS Number: 25057-89-0
U.S. EPA PC Code: 275200
CA DPR Chem Code: 2999
Molecular Weight: 240.28
Use Type: Herbicide
Chem Class: Unclassified
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type
 
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code ) , 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-(1-methylethyl)-, 2,2-dioxide , 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-(1-methylethyl)-, 2,2-dioxide (9CI) , 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-isopropyl-, 2,2-dioxide , 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-isopropyl-, 2,2-dioxide (8CI) , 25057-89-0 (CAS number) , 25057890 , 25057890 (CAS number without hyphens) , 275200 (US EPA PC Code Text ) , 2999 (CA DPR Chem Code) ) , 3-(1-Methylethyl)-(1H)-2,1,3-benzothiadiazin-4-(3H)-one 2,2-dioxide , 3-(1-Methylethyl)-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide , 3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide , 3-isopropyl-1H-2,1,3-benzothiadiazin-4-(3H)-one 2,2-dioxide , 3-Isopropyl-1H-benzo-2,1,3-thiadiazin-4-one-2,2-dioxide , 3-Isopropyl-2,1,3-benzothiadiazininon-(4)-2,2-dioxid (German) , 758 (PDP Code) , BAS 351-H , Basagram , Basagran , Bendioxide , Bentazon , Bentazon (ANSI) , Bentazon (Basagran) , BENTAZON (CA DPR Chem Code Text ) , Bentazon Toxicological Review , Bentazona , Bentazone , Bentazone, technical
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Bentazon 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.

Symptoms of Bentazon 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! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

Route of Exposure

Symptoms

First Aid

Inhalation Fresh air rest. Refer for medical attention.
Skin 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 Give plenty of water to drink. Refer for medical attention.
Notes for ICSC Information
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. Adagio Basagran Pledge are trade names.
 

Toxicity Information for Bentazon

  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 Slight Not Likely 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
Bentazon
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
III, Slightly 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
Bentazon
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
Not Listed
Not Listed
Not Listed
E, Unlikely
Not Listed
 
Endocrine Disruption
Bentazon
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
Bentazon
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
Bentazon
PAN Bad Actors
PAN Dirty Dozen list
Not Listed
Not Listed
 

Water Pollution Potential and Criteria for Bentazon

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)
570.0
51.0
-
13.0
-
 
 

Water Standards and Criteria

U.S. National Drinking Water Standards and Health Criteria
g/L unless noted  
Maximum Contaminant Level (MCL) 0  
Maximum Contaminant Level Goal (MCLG)  
One Day Exposure Health Advisory Level 300.0  
Ten Day Exposure Health Advisory Level 300.0  
Lifetime Exposure Health Advisory Level 200.0  
Reference Dose 30.0 (g/kg/day)  
U.S. Drinking Water Equivalent Level 1,000  
Concentration with Lifetime Cancer Risk of 1 in 10,000  
WHO Water Quality Criteria
Description Occurs in drinking-water at concentrations well below those at which toxic effects may occur
Notes Notes: n
 

Regulatory Information for Bentazon

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
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 Bentazon

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 Accumulation, Mortality
AquaticPlants Accumulation, Biochemistry, Genetics, Growth, Population
Crustaceans Accumulation
Fish Avoidance, Behavior, Feeding Behavior, Mortality
Insects Accumulation, Mortality
Molluscs Accumulation, Growth, Intoxication, Mortality, Population
Phytoplankton Accumulation, Biochemistry, Cell(s), Physiology, Population
TerrestrialPlants Population
Zooplankton Accumulation, Intoxication, Morphology, Mortality
~ Un-Assigned Physiology, Population
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Annelida Slightly Toxic Slight Toxicity
Fish Not Acutely Toxic Not Acutely Toxic
Insects Slightly Toxic Slight Toxicity
Molluscs Slightly Toxic Slight Toxicity
Zooplankton Not Acutely Toxic Not Acutely Toxic to Slightly Toxic
~ Un-Assigned Moderately Toxic Moderate 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 Bentazon

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
25057-89-0 Parent P Bentazon View View View Herbicide No Not Listed
30391-89-0 Related 5a 2-Amino-N-isopropylbenzamide View View View Breakdown product No Not Listed
61592-45-8 Related 2 Bentazon methyl View View View Herbicide No Not Listed
50723-80-3 Related 1 Bentazon, sodium salt View View View Herbicide Yes Yes
 
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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