PAN Pesticides Database - Chemicals

Heptachlor - 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 Heptachlor

Basic Identification Information About This Chemical
Chemical Name: Heptachlor
CAS Number: 76-44-8
U.S. EPA PC Code: 044801
CA DPR Chem Code: 317
Molecular Weight: 373.32
Molecular Structure:
Use Type: Insecticide
Chem Class: Organochlorine
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  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code ) , 044 (PDP Code) , 044801 (US EPA PC Code Text ) , 1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methano-1H-indene , 1,4,5,6,7,8,8-Heptachlorotetrahydro-4,7-methanoindene , 317 (CA DPR Chem Code) ) , 4,7-Methano-1H-indene, 1,4,5,6,7,8,8-heptachloro-3a,4,7,7a-tetrahydro- , 76-44-8 (CAS number) , 76448 , 76448 (CAS number without hyphens) , ENT 15152 , ENT-15152 , Heptachlor , HEPTACHLOR (CA DPR Chem Code Text ) , Heptachlor and HeptachlorEpoxide , Heptachlor [1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methano-1H-indene] , Heptachlor/Heptachlor epoxide , Heptacloro , Heptchlor
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Heptachlor 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.

Heptachlor is a Organochlorine compound.

Report a Poisoning

Symptoms of Poisoning with Organochlorine Compounds
Find Products Containing this Chemical

- Hypersensitive to stimulation, sensation of prickling, tingling or creeping on skin.
- Headache, dizziness, nausea, vomiting, incoordination, tremor, mental confusion, hyperexcitable state.
- In severe cases: convulsions, seizures, coma and respiratory depression.

Source for Group Symptoms: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 6.

Treatment for Organochlorine Poisoning

See: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 6, page 58.

 
Symptoms of Heptachlor 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! AVOID ALL CONTACT!

Route of Exposure

Symptoms

First Aid

Inhalation Convulsions. Tremor. Fresh air rest. Refer for medical attention.
Skin MAY BE ABSORBED! (See Inhalation). Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion (See Inhalation). Rinse mouth. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention.
Notes for ICSC Information
Other melting points: 46-74C for the technical product. Depending on the degree of exposure periodic medical examination is suggested. Carrier solvents used in commercial formulations may change physical and toxicological properties. Do NOT take working clothes home.
 

Toxicity Information for Heptachlor

  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
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.

Detailed Toxicity Information

Acute Toxicity 2
Heptachlor
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
Moderately to Highly 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
Heptachlor
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
2B, Possible
Not Listed
Yes
B2, Probable
Not Listed
 
Endocrine Disruption
Heptachlor
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
Heptachlor
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
Yes
Not Listed
Not Listed
Not Listed
Not Listed
 
Chemicals of Special Concern
Heptachlor
PAN Bad Actors
PAN Dirty Dozen list
Yes
Yes
 

Water Pollution Potential and Criteria for Heptachlor

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)
0.06
24,000
1.00
285.0
-
 
 

Water Standards and Criteria

U.S. National Drinking Water Standards and Health Criteria
g/L unless noted  
Maximum Contaminant Level (MCL) 0.40  
Maximum Contaminant Level Goal (MCLG) 0  
One Day Exposure Health Advisory Level 10.0  
Ten Day Exposure Health Advisory Level 10.0  
Lifetime Exposure Health Advisory Level  
Reference Dose 0.50 (g/kg/day)  
U.S. Drinking Water Equivalent Level 20.0  
Concentration with Lifetime Cancer Risk of 1 in 10,000 0.80  
U.S. National Water Quality Criteria
g/L unless noted  
Fresh Water Quality Criteria Continuous Exposure 0.0038 Notes: g,aa  
Fresh Water Quality Criteria Maximum Peak 0.52 Notes: g  
Salt Water Quality Criteria Continuous Exposure 0.0036 Notes: g,aa
Salt Water Quality Criteria Max 0.05 Notes: g
Human Consumption of Organisms from Water Source 0.0001 Notes: b,c
Human Consumption of Water and Organisms from Water Source 0.0001 Notes: b,c
Taste and Odor Criteria
WHO Water Quality Criteria
Description Occurs in drinking-water at concentrations well below those at which toxic effects may occur
Notes Notes: n
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
g/L unless noted  
Irrigation Water Guidelines
Livestock Water Guidelines (interim), Notes: a
 

Regulatory Information for Heptachlor

International Regulatory Status

 
UNEP Persistent Organic Pollutant (POP)
UNEP Prior Informed Consent Chemical (PIC)
WHO Obsolete Pesticide
Yes
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
Yes
No

No
Not Listed
HAPTAC, Indus
 

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 Heptachlor

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 Behavior, Development, Mortality
Annelida Mortality
AquaticPlants Accumulation
Crustaceans Accumulation, Intoxication, Mortality, No Effect Coded
Echinoderms Development
Fish Accumulation, Behavior, Biochemistry, Cell(s), Enzyme(s), Growth, Histology, Mortality, No Effect Coded, Physiology, Reproduction
Insects Intoxication, Mortality
Molluscs Accumulation, Growth, Morphology, Mortality
Phytoplankton Cell(s), Mortality, Physiology, Population
Zooplankton Accumulation, Behavior, Intoxication, Mortality, Population, Reproduction
~ Un-Assigned Mortality, Population
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Amphibians Moderately Toxic Slight to High Toxicity
Annelida Moderately Toxic Moderate Toxicity
Crustaceans Very Highly Toxic High to Very High Toxicity
Fish Highly Toxic Moderate to Very High Toxicity
Insects Highly Toxic Moderate to Very High Toxicity
Molluscs Moderately Toxic Moderate Toxicity
Zooplankton Very Highly Toxic High to Very High Toxicity
~ Un-Assigned Very Highly Toxic Very Highly 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 Heptachlor

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
76-44-8 Parent P Heptachlor View View View Insecticide No Yes
1024-57-3 Related 5a Heptachlor epoxide View View View Breakdown product No Yes
Related 6 Heptachlor epoxide, cis View View View No Not Listed
Related 6 Heptachlor epoxide, trans View View View No Not Listed
Related 8 Heptachlor, 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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