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camphechlor (Ref: Hercules 3956)
** toxaphene ** polychlorocamphene ** chlorocamphene ** toxafeen ** octachlorocamphene ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home
Further data may be found in the VSDB

SUMMARY

Camphechlor is an obsolete insecticide and acaricide that is not approved for use in the EU. It has a low aqueous solubility, is quite volatile and moderately mobile. Based on its chemical properties, it has a high risk of leaching to groundwater. It is not expected to be persistent in soil but may be persistent in water systems. Camphechlor is highly toxic to mammals and is likely to bioaccumulate. It is highly toxic to birds and most aquatic organisms.

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for camphechlor

Description: An obsolete insecticide that was often used in conjunction with other active substances to control a wide range on insects on crops and livestock

Example pests controlled: Lygus bugs; Aphids; Spidermites; Ticks; Fleas; Mange mites; Lice; Scab mites; Grasshoppers; Armyworms; Cutworms

Example applications: Cotton; Ornamentals; Pineapples; Corn and small grains; Vegetables; Oilseeds; Livestock

Efficacy & activity: -

Availability status: Obsolete/Banned

Introduction & key dates: 1947, first developed

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Expired
EU Candidate for substitution (CfS) -
Listed in EU database Yes

Approved for use () or known to be used () in the following European countries: Click to access a note on the approvals information on this site

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism A chiral molecule
Chemical formula C10H10Cl8
Canonical SMILES C1C2C(C(C(C1(Cl)Cl)(C2(CCl)C(Cl)Cl)CCl)Cl)Cl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) YNEKMCSWRMRXIR-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C10H10Cl8/c11-2-8(7(15)16)4-1-10(17,18)9(8,3-12)6(14)5(4)13/h4-7H,1-3H2
2D structure diagram/image available? Yes

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Insecticide, Acaricide, Veterinary substance
Substance group Chlorinated hydrocarbon
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action A non-systemic contact and stomach insecticide. It acts on the neurons, causing an imbalance in sodium and potassium ions, similar to that of the cyclodiene insecticides.
CAS RN 8001-35-2
EC number 232-283-3
CIPAC number 23
US EPA chemical code 080501
PubChem CID 58167
Molecular mass (g mol-1) 413.96
PIN (Preferred Identification Name) -
IUPAC name reaction mixture of chlorinated camphenes containing 67–69% chlorine
CAS name 2,2,5-endo,6-exo,8,8,9,10-Octachlorobornane
Other status information Chemical subject to PIC regulations; OSPAR soc; POP - regulated by Stockholm Convention; Severe Marine Pollutant; Rotterdam Convention (Class O)
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) Not known
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance -
Physical state Yellow to amber waxy solid
Related substances & organisms -

Formulations:
Property Click here for information on the general product and branding information used on this site Value
Example manufacturers & suppliers of products using this active now or historically
  • Hercules
  • BCF
Example products using this active
  • Agrones Hepta
  • Altox
  • Attac
  • Toxaphene
  • Phenacide
  • Phenatox
  • Toxakil
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Usually formulated as a wettable power, dust or emulsifiable concentrate.


ENVIRONMENTAL FATE

for camphechlor

Property Click here for information on the parameters used to describe environmental fate on this site Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with fate data Interpretation Click here for information on the way in which we interpret environmental fate data
Solubility - In water at 20oC (mg l-1) 3.0 F4 Low
Solubility - In organic solvents at 20oC (mg l-1) 4500000 CA3 - Benzene -
4500000 CA3 - Carbon tetrachloride -
4500000 CA3 - Xylene -
2800000 CA3 - Kerosene -
Melting point (oC) 78 V2 - Range 65-90 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 2.00 X 1003 Calculated -
Log P 3.3 F4 High
Bulk density (g ml-1)/Specific gravity 1.65 F4 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 0.67 Q3 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 6.08 X 10-01 V3 Moderately volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 3.92 Calculated High leachability
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Click here for a note on the limitations of the SCI-GROW index Value 1.21 X 10+00 Calculated -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - Calculated Medium
Maximum UV-vis absorption L mol-1 cm-1 - - -
Surface tension (mN m-1) - - -

Degradation:
Property Click here for information on the parameters used to describe substance degradation Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with degradation data Interpretation Click here for information on the way in which we interpret substance degradation data
General biodegradability -
Soil degradation (days) (aerobic) DT50 (typical) 365 L1 Very persistent
DT50 (lab at 20oC) - - -
DT50 (field) 9 F3 Non-persistent
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Literature sources highly variable: DT50 2 months and 14 years; US sources: 9 days (DW3, US3); Field DT50 9 to 500 days (R3)
Dissipation rate RL50 on plant matrix Value 3.6 R4 -
Note Published literature RL50 range 1.6-5.0 days, 4 field crops, various matrices, n=4
Dissipation rate RL50 on and in plant matrix Value 12.6 R4 -
Note Published literature RL50 range 2.3-25.2 days, 4 field crops, various matrices, n=7
Aqueous photolysis DT50 (days) at pH 7 Value - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value Stable R3 -
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

Soil adsorption and mobility:
Property Click here for information on the parameters used to describe substance adsorption and mobility Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretation Click here for information on the way in which we interpret substance adsorption and mobility
Linear Kd - F2 Moderately mobile
Koc 295
Notes and range Literature range for log Koc = 2.47-5.00; Other sources: Koc 100000 mL/g (US2)
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -

Key metabolites:
Metabolite Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
strobane (Ref: ENT 19442)   -   -


ECOTOXICOLOGY

for camphechlor

Property Click here for information on the parameters used to describe substance ecotoxicology Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretation Click here for information on the way in which we interpret substance ecotoxicology
Bio-concentration factor BCF (l kg-1) 76000 R4 High potential
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 50 V3 Rat High
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 15 V3 Anas platyrhynchos High
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.0044 F4 Lepomis macrochirus High
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.0141 F4 Daphnia magna High
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) 0.0021 F3 Americamysis bahia High
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) - - -
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) > 0.38 F4 Pseudokirchneriella subcapitata Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) - - -
Oral acute 48 hour LD50 (μg bee-1) > 19.1 F4 Moderate
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) - - -
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect - - -
Other arthropod (2) LR50 g ha-1 - - -
% Effect - - -
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for camphechlor

General:
Property Click here for information on the parameters used to describe human health and protection issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with human health and protection data Interpretation Click here for information on the way in which we interpret human health and protection data
Threshold of Toxicological Concern (Cramer Class) Click here for a note on the limitations of the Cramer class High (class III) - -
Mammals - Acute oral LD50 (mg kg-1) 50 V3 Rat High
Mammals - Dermal LD50 (mg kg-1 body weight) - - -
Mammals - Inhalation LC50 (mg l-1) - - -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) - - -
ARfD - Acute Reference Dose (mg kg-1bw day-1) - - -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) - - -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Limits [LT TLV-TWS (US): 0.5 mg/m3] F3 -
Exposure Routes Public Possible risk via food contamination
Occupational Absorbed by the intact skin and from the gastrointestinal tract
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutagen Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues IARC group 2B carcinogen
Ingestion may be fatal
May cause convulsions
Potential kidney toxicant
May cause allergic bronchopneumonia
Endocrine issues - Increase of estrogen-sensitive cells proliferation

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data found

Handling issues:
Property Click here for information on the parameters used to describe substance handling issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with data on handling issues Interpretation Click here for information on the way in which we interpret data on handling issues
General Click here for a description of the International Maritime Dangerous Goods (IMDG) codes Corrosive
Not compatible with strongly alkaline pesticides
CLP classification 2013 Health: H301, H312, H315, H335, H351
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Carcinogen category 3: R40
T - Toxic: R25
Xn - Harmful: R21
Xi - Irritant: R40
N - Dangerous for the environment: R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S1/2, S36/37, S45, S61, S60
WHO Classification O - Obsolete substance
US EPA Classification (formulation) II - Warning - Moderately toxic
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for camphechlor

Language Name
English camphechlor
French bamphéchlore
German Camphechlor
Danish camphechlor, toxaphen
Italian camfeclor
Spanish camfeclor
Greek -
Slovenian kamfeklor
Polish kamfechlor
Swedish -
Hungarian -
Dutch toxafeen

Record last updated: Tuesday 22 May 2018
Contact: aeru@herts.ac.uk