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trimethacarb (Ref: OMS 597)
** landrin ** SD 8530 ** Translations

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

SUMMARY

Trimethacarb is an insecticide without EU regulatory approval for use. It is moderately soluble in water, is quite volatile and there is also a slight risk of leaching to groundwater. It is not generally persistent in soil systems. It may degrade quickly via hydrolysis in aquatic systems. It is moderately toxic to mammals but would not be expected to bioaccumulate. It is an acetyl cholinesterase inhibitor and a neurotoxin. It shows a moderate to high level of toxicity to most aquatic species.

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

Description: An obsolete carbamate insecticide and molluscide which also acts as a bird and mammal repellant

Example pests controlled: Corn rootworms; Birds; Mammals; Store produce insects

Example applications: Stored cereals; Agricultural fields; Forestry

Efficacy & activity: -

Availability status: Obsolete

Introduction & key dates: -

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Not applicable
EU Candidate for substitution (CfS) Not applicable
Listed in EU database No

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 -
Chemical formula C11H15NO2
Canonical SMILES CC1=CC(=CC(=C1C)C)OC(=O)NC
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) NYOKZHDTNBDPOB-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C11H15NO2/c1-7-5-10(14-11(13)12-4)6-8(2)9(7)3/h5-6H,1-4H3,(H,12,13)
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, Molluscicide, Repellent
Substance group Carbamate
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Mainly stomach action but has some contact effects, Cholinesterase inhibitor
CAS RN 2686-99-9
EC number 220-245-9
CIPAC number 130
US EPA chemical code 102401
PubChem CID 17592
Molecular mass (g mol-1) 193.24
PIN (Preferred Identification Name) reaction product comprising from 3.5 to 5 parts by mass of 3,4,5-trimethylphenyl methylcarbamate to 1 part by mass of 2,3,5-trimethylphenyl methylcarbamate
IUPAC name reaction product comprising from 3.5 to 5 parts by mass of 3,4,5-trimethylphenyl methylcarbamate to 1 part by mass of 2,3,5-trimethylphenyl methylcarbamate
CAS name 2,3,5(or 3,4,5)-trimethylphenyl methylcarbamate
Other status information Phytotoxic to some crop seeds including maize, wheat and rice
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) 1A
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance -
Physical state Off-white to brown granules
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
  • Union Carbide
Example products using this active
  • Broot
  • Landrin
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Usually supplied as a granular formulation.


ENVIRONMENTAL FATE

for trimethacarb

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) 58 L3 Moderate
Solubility - In organic solvents at 20oC (mg l-1) - - -
Melting point (oC) Decomposes before melting F4 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 3.55 X 1002 Calculated -
Log P 2.55 K3 Low
Bulk density (g ml-1)/Specific gravity 1.05 Q2 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 6.8 L3 Moderately volatile
Henry's law constant at 25oC (Pa m3 mol-1) 4.38 X 10-03 Q3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 2.49 Calculated Transition state
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 1.54 X 10-01 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 Low
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) 20 DW4 Non-persistent
DT50 (lab at 20oC) 60 F3 Moderately persistent
DT50 (field) 50 F3 Moderately persistent
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note General literature states DT50 14 days in moist sand and 60 days in sterile soil and 42 days in dry, aerated soils
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value - - -
Note -
Aqueous photolysis DT50 (days) at pH 7 Value - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 40 F4 Moderately 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 - DW4 Moderately mobile
Koc 400
Notes and range -
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
3,5-dimethyl-4-(hydroxymethyl)phenyl N-methylcarbamate Soil   -   Major
4,5-dimethyl-3-(hydroxymethyl)phenyl N-methylcarbamate Soil   -   -
2,5-dimethyl-3-(hydroxymethyl)phenyl N-methylcarbamate Soil   -   -


ECOTOXICOLOGY

for trimethacarb

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) 60 Q2 Estimated Low potential
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 566 F3 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 238 F4 Colinus virginianus Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 1.0 F4 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 18 F4 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) > 0.032 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) > 25 Q1 Estimated Low
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) 47.9 F3 Nomia melanderi Moderate
Oral acute 48 hour LD50 (μg bee-1) - - -
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 trimethacarb

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 Low (class I) - -
Mammals - Acute oral LD50 (mg kg-1) 566 F3 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) - - -
Mammals - Inhalation LC50 (mg l-1) - - -
Other Mammal toxicity endpoints > 2000 F3 Rats -
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 - - -
Exposure Routes Public -
Occupational -
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 Ingestion may cause typical poisoning symptons and in severe cases, may lead to convulsions and respiratory failure

: 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 No information available
CLP classification 2013 -
EC Risk Classification Click here to view information omn the EU risk phrases Not classified: Obsolete
EC Safety Classification Click here to view information omn the EU safety phrases Not classified: Obsolete
WHO Classification O - Obsolete substance
US EPA Classification (formulation) No consensus across products or no products available - -
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for trimethacarb

Language Name
English trimethacarb
French trimethacarbe
German Trimethacarb
Danish trimethacarb
Italian trimetacarb
Spanish trimetacarb
Greek -
Slovenian trimetakarb
Polish trimetakarb
Swedish -
Hungarian -
Dutch -

Record last updated: Wednesday 30 May 2018
Contact: aeru@herts.ac.uk