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fenobucarb (Ref: Bayer 41367C)
** BRN 2052332 ** BPMC ** 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 fenobucarb

Description: Used to control a range of biting and sucking insects in rice and other crops

Example pests controlled: Leaf hoppers, Leaf rollers, Thrips, Stem borers

Example applications: Rice; Cotton

Efficacy & activity: -

Availability status: Unknown

Introduction & key dates: 1968

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) -
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 Fenobucarb is a chiral molecule. The technical material is an isomeric mixture.
Chemical formula C12H17NO2
Canonical SMILES CCC(C)C1=CC=CC=C1OC(=O)NC
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) DIRFUJHNVNOBMY-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C12H17NO2/c1-4-9(2)10-7-5-6-8-11(10)15-12(14)13-3/h5-9H,4H2,1-3H3,(H,13,14)
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
Substance group Carbamate
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Contact acting with long residual effects. Acetylcholinesterase (AChE) inhibitor.
CAS RN 3766-81-2
EC number 223-188-8
CIPAC number 390
US EPA chemical code -
PubChem CID 19588
Molecular mass (g mol-1) 207.27
PIN (Preferred Identification Name) rac-2-[(2R)-butan-2-yl]phenyl methylcarbamate
IUPAC name (RS)-2-sec-butylphenyl methylcarbamate
CAS name 2-(1-methylpropyl)phenyl methylcarbamate
Other status information -
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 Nephotettix cincticeps
Sogatella furcifera
Physical state Oily yellow liquid which may solidify at lower temperatures
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
  • AgroCare
  • King Tech Corp
  • Sumitomo Chemical Co. Ltd.
Example products using this active
  • BayCarb
  • Hopcin
  • Forcin
  • Merlin
  • Vitagro
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 emulsifiable concentrates, dusts, micro granules and ULV liquids.


ENVIRONMENTAL FATE

for fenobucarb

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) 420.0 L3 Moderate
Solubility - In organic solvents at 20oC (mg l-1) - - -
Melting point (oC) 31.5 V3 -
Boiling point (oC) Decomposes before boiling Q3 -
Degradation point (oC) - - -
Flashpoint (oC) 142 L3 - (closed cup) -
Octanol-water partition coefficient at pH 7, 20oC P 6.03 X 1002 Calculated -
Log P 2.78 V3 Moderate
Bulk density (g ml-1)/Specific gravity 1.04 E3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 48 Q2 Highly volatile
Henry's law constant at 25oC (Pa m3 mol-1) - - -
GUS leaching potential index Click here for a note on the limitations of the GUS index 1.23 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 2.39 X 10-02 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) 18.5 Q3 Non-persistent
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note General literature DT50 14-23 Days in upland soil, paddy fields 7-9 days
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value 6.0 R4 -
Note Published literature RL50 range 2.2-10.9 days, 2 field crops, various matrices, n=4
Aqueous photolysis DT50 (days) at pH 7 Value Stable L3 -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 20 L2 Non-persistent
Note pH sensitive: DT50 28 days at pH 2, 16.9 days at pH 9, 2 days at pH 10, all @ 20 degC
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 - Q2 Slightly mobile
Koc 1068
Notes and range Estimated
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for fenobucarb

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) Low risk Q3 Based on LogP < 3 Low potential
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) 620 F4 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 2250 E3 Colinus virginianus Low
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 1.70 F3 Cyprinus carpio Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.1 F3 Daphnia magna Moderate
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) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) 10.7 L3 Eisenia foetida Moderate
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 fenobucarb

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 II) - -
Mammals - Acute oral LD50 (mg kg-1) 620 F4 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) > 5000 V3 Rat -
Mammals - Inhalation LC50 (mg l-1) 0.37 Q3 Rat -
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 - - -
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 No further information available

: 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 Health: H302
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R22
N - Dangerous for the environment; R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S2, S60, S61
WHO Classification II - Moderately hazardous
US EPA Classification (formulation) II - Warning - Moderately toxic
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for fenobucarb

Language Name
English fenobucarb
French -
German -
Danish -
Italian -
Spanish -
Greek -
Slovenian -
Polish fenobukarb
Swedish -
Hungarian -
Dutch -

Record last updated: Thursday 31 May 2018
Contact: aeru@herts.ac.uk