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imibenconazole (Ref: HF 6305)
** HF 8505 ** Translations

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

SUMMARY

Imibenconazole is a triazole fungicide without EU regulatory approval for use. It has a low aqueous solubility, is slightly volatile and, based on its chemical properties, it is non-mobile and unlikely to leach to groundwater. It is not generally persistent in soil systems but may be moderately persistent in aquatic systems under certain conditions. It has a low mammalian toxicity. It shows a moderate level of toxicity to fish, daphnia and earthworms but is relatively non-toxic to honey bees, birds and algae.

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

Description: Used to control a range of fungal diseases affecting fruit, vegetables, turf and ornamentals

Example pests controlled: Scab, Powdery mildew, Alternaria leaf spot, Rust

Example applications: Fruit including apples, pears, peaches, citrus; Ornamentals including roses, chrysanthemums

Efficacy & activity: -

Availability status: Unknown

Introduction & key dates: 1994

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 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 -
Chemical formula C17H13Cl3N4S
Canonical SMILES C1=CC(=CC=C1CSC(=NC2=C(C=C(C=C2)Cl)Cl)CN3C=NC=N3)Cl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) AGKSTYPVMZODRV-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C17H13Cl3N4S/c18-13-3-1-12(2-4-13)9-25-17(8-24-11-21-10-22-24)23-16-6-5-14(19)7-15(16)20/h1-7,10-11H,8-9H2
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 Fungicide
Substance group Triazole
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Systemic with curative and preventative action. Inhibits germ tube and mycellium growth. Sterol biosynthesis inhibitor.
CAS RN 86598-92-7
EC number -
CIPAC number None allocated
US EPA chemical code -
PubChem CID 93483
Molecular mass (g mol-1) 411.7
PIN (Preferred Identification Name) (4-chlorophenyl)methyl (E)-N-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanimidothioate
IUPAC name 4-chlorobenzyl (EZ)-N-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-yl)thioacetamidate
CAS name (4-chlorophenyl)methyl N-(2,4-dichlorophenyl)-1H-1,2,4-triazole-1-ethanimidothioate
Other status information -
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) 3
Examples of recorded resistance -
Physical state Pale yellow crystals
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
  • Hokko Chemical Industry Co. Ltd.
Example products using this active
  • Manage
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Available in a wide variety of formulations including emulsifiable concentrates, soluble concentrates, water dispersiable granules and wettable powders. Often used as a seed dressing.


ENVIRONMENTAL FATE

for imibenconazole

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) 1.7 L3 Low
Solubility - In organic solvents at 20oC (mg l-1) 1063000 L3 - Acetone -
580000 L3 - Benzene -
250000 L3 - Xylene -
120000 L3 - Methanol -
Melting point (oC) 89.7 L3 -
Boiling point (oC) 567 E3 -
Degradation point (oC) - - -
Flashpoint (oC) 297 E3 -
Octanol-water partition coefficient at pH 7, 20oC P 8.71 X 1004 Calculated -
Log P 4.94 L3 High
Bulk density (g ml-1)/Specific gravity - - -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 0.000085 L3 Low volatility
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 -0.13 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 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) 15 L3 Non-persistent
DT50 (lab at 20oC) 12 L3 Non-persistent
DT50 (field) 14.5 L3 Non-persistent
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Literature values Lab studies DT50 range 4-20 days, field studies DT50 range 1-28 days
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 88 L3 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 - L3 Non-mobile
Koc 13120
Notes and range Literature Koc range 2813-23391 mL/g
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for imibenconazole

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) - - -
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) > 2800 L3 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 2250 L3 Anas platyrhynchos Low
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.67 L3 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 100 L3 Daphnia magna Low
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) > 1000 L2 Unknown species Low
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees (Apis spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) > 125 L3 Low
Unknown mode acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Bumblebees (Bombus spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
-
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
-
Mason bees (Osmia spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Other pollinators (1) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Other pollinators (2) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Earthworms - Acute 14 day LC50 (mg kg-1) > 1000 L3 Low
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 imibenconazole

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) > 2800 L3 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) > 2000 L3 Rat -
Mammals - Inhalation LC50 (mg l-1) 1.02 L3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.0085 L3 -
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 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 Genotoxic Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

-

A3; B0; C0; D0; E0

-

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

-

-

General human health issues Harmful by inhalation, in contact with skin and if swallowed
Key: Genotoxicity
A: Chromosome aberration (EFSA database)
B: DNA damage/repair (EFSA database)
C: Gene mutation (EFSA database)
D: Genome mutation (EFSA database)
E: Unspecified genotoxicity type (miscellaneous data source)
0: No data
1: Positive
2: Mixed/ambiguous results
3: Negative
Key: Other
: 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 Highly flammable
CLP classification 2013 Health: H302, H312, H319, H332
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R20/21/22
Xi - Irritant; R36
H - Handling risks: R11
EC Safety Classification Click here to view information omn the EU safety phrases S16, S36/37
WHO Classification U - Unlikely to present an acute hazard
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for imibenconazole

Language Name
English imibenconazole
French -
German -
Danish -
Italian -
Spanish -
Greek -
Slovenian imibenkonazol
Polish -
Swedish -
Hungarian -
Dutch -

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