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ethion (Ref: ENT 24105)
** diethion ** diéthion ** dietion ** FMC 1240 ** NIA 1240 ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

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

Description: An insecticide and acaricide used to control a range of pests. Can also be a pesticide transformation product

Example pests controlled: Red spidermite (Tetranychus urticae); Planthoppers; Aphids; Scale insects; Codling moth

Example applications: Fruit including apples, pears, citrus; Onions; Cotton; Cereals

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1957, first reported

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

Also used in: Australia

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism None
Chemical formula C9H22O4P2S4
Canonical SMILES CCOP(=S)(OCC)SCSP(=S)(OCC)OCC
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) RIZMRRKBZQXFOY-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C9H22O4P2S4/c1-5-10-14(16,11-6-2)18-9-19-15(17,12-7-3)13-8-4/h5-9H2,1-4H3
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, Metabolite
Metabolite Type Soil
Substance group Organophosphate
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Non-systemic with a predominate contact action. Acetylcholine esterase inhibitor.
CAS RN 563-12-2
EC number 209-242-3
CIPAC number 102
US EPA chemical code 058401
PubChem CID 3286
Molecular mass (g mol-1) 384.48
PIN (Preferred Identification Name) O,O,O',O'-tetraethyl S,S'-methylene bis(phosphorodithioate)
IUPAC name O,O,O',O'-tetraethyl S,S'-methylene bis(phosphorodithioate)
CAS name S,S'-methylene bis(O,O-diethyl phosphorodithioate)
Other status information Severe Marine Pollutant; Chemical subject to PIC regulations
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) 1B
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance Amblyseius fallacis
Delia antiqua, Musca domestica
Phytoseiulus persimilis
Boophilus microplus
many others
Physical state Amber liquid
Related substances & organisms -

Can be a metabolite of:
Parent Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
chlormephos Soil     -

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
  • Bayer CropScience
  • Cheminova
  • King Tech Corp
  • Hikal Ltd.
Example products using this active
  • Rhodocide
  • Ethio
  • Tefethion
  • Ethiomobeed
  • Nialate
  • Hylemox
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Available in a variety of formulations including dusts, emulsifiable concentrates and solutions, granules and wettable powders.


ENVIRONMENTAL FATE

for ethion

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) 2 L3 Low
Solubility - In organic solvents at 20oC (mg l-1) Miscible L3 - Acetone -
Miscible L3 - Ethanol -
Miscible L3 - Xylene -
Miscible L3 - Methanol -
Melting point (oC) -12 Q3 -
Boiling point (oC) 165 F3 -
Degradation point (oC) - - -
Flashpoint (oC) 176 L3 - (closed cup) -
Octanol-water partition coefficient at pH 7, 20oC P 1.17 X 1005 Calculated -
Log P 5.07 G4 High
Bulk density (g ml-1)/Specific gravity 1.22 L3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 0.2 G4 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 3.85 X 10-02 L3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 0.00 Calculated Low 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 5.35 X 10-03 Calculated -
Note Estimated concentrations of chemicals with Koc values greater than 9995 ml g-1 are beyond the scope of the regression data used in SCI-GROW development. If there are concerns for such chemicals, a higher tier groundwater exposure assessment should be considered, regardless of the concentration returned by SCI-GROW
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - Calculated High
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) 90 L3 Moderately persistent
DT50 (lab at 20oC) 150 Q2 Persistent
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Tropical soils DT50 range 9-16 days, temperate sandy soils DT50 49-56 day, 168 days organic soils
Dissipation rate RL50 on plant matrix Value 5.5 R4 -
Note Published literature RL50 range 3.0-10.5 days, 5 field crops, various matrices, n=6
Dissipation rate RL50 on and in plant matrix Value 4.3 R4 -
Note Published literature RL50 range 2.0-9.4 days, 7 field &crops, various matrices, n=8
Aqueous photolysis DT50 (days) at pH 7 Value - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 146 F4 Persistent
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 - G3 Non-mobile
Koc 10000
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for ethion

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) 586 F3 Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 208 F4 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) 0.3 L2 Rat, 2 year High
(ppm diet) 6 -
Birds - Acute LD50 (mg kg-1) 128 L3 Phasianidae Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.5 G4 Salmonidae Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.000056 G3 Unknown species High
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
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) - - -
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) - - -
Unknown mode acute 48 hour LD50 (μg bee-1) 20.6 G3 Moderate
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 Harmful AB1 Typhlodromus pyri -
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 ethion

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) 208 F4 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) 838 L3 Rabbit -
Mammals - Inhalation LC50 (mg l-1) 0.45 L3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.002 JMPR 1990 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) 0.015 UK ACP 1999 -
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 List I; List II - -
Exposure Limits - - -
Exposure Routes Public -
Occupational May be absorbed through the skin
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 Bioaccumulates

: 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 Prevent generation of mists
Use foam, carbon dioxide or dry chemicals to tackle fires
May produce toxic gases in a fire
CLP classification 2013 Health: H301, H312
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases T - Toxic: R25
Xn - Harmful: R21
N - Dangerous for the environment: R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S1/2, S25, S36/37, S45, S60, S61
WHO Classification II - Moderately hazardous
US EPA Classification (formulation) II - Warning - Moderately toxic
UN Number 3018
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for ethion

Language Name
English ethion
French ethion
German Ethion
Danish ethion
Italian etion
Spanish etion
Greek ethion
Slovenian etion
Polish etion
Swedish -
Hungarian -
Dutch ethion

Record last updated: Monday 28 May 2018
Contact: aeru@herts.ac.uk
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