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chinomethionat (Ref: ENT 25606)
** oxythioquinox ** quinomethionate ** chinomethionate ** Bayer 36205 ** Bayer SAS2074 ** Translations

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

SUMMARY

Chinomethionat is a multi-use pest control substance that does not have EU approval for use. It has a low aqueous solubiltiy, a low volatility and, based on its chemical properties, would not normally be expected to leach to groundwater. It does not normally persist in soil or aquatic systems. Whilst chinomethionat is a skin and eye irritant, it is not highly toxic and no serious health issues have been identified. It is highly toxic to fish and algae but moderately toxic to most other species.

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

Description: A quinoxaline fungicide, miticide and acaricide used to control various pests and diseases

Example pests controlled: Spidermites; Powder mildew; Pear psylla; Mite eggs; Whiteflies; Aphids

Example applications: Fruit including, citrus, apples, pears, plums, peaches; Vegetables; Walnuts; ornamentals

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1960, first reported; 1968, first registered USA

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Germany
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 C10H6N2OS2
Canonical SMILES CC1=CC2=C(C=C1)N=C3C(=N2)SC(=O)S3
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) FBQQHUGEACOBDN-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C10H6N2OS2/c1-5-2-3-6-7(4-5)12-9-8(11-6)14-10(13)15-9/h2-4H,1H3
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, Acaricide, Miticide, Insecticide
Substance group Carbamate
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Selective, non-systemic contact action with protective and curative properties. Multi-site activity.
CAS RN 2439-01-2
EC number 219-455-3
CIPAC number 172
US EPA chemical code 054101
PubChem CID 17109
Molecular mass (g mol-1) 234.30
PIN (Preferred Identification Name) 6-methyl-2H-[1,3]dithiolo[4,5-b]quinoxalin-2-one
IUPAC name 6-methyl-1,3-dithiolo[4,5-b]quinoxalin-2-one
CAS name 6-methyl-1,3-dithiolo[4,5-b]quinoxalin-2-one
Other status information Phytotoxic to specific varieties of top fruit, currants and some ornamentals; 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) UN
Fungicide Resistance Classification (FRAC) M10
Examples of recorded resistance -
Physical state 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
  • Bayer CropScience
  • Mobay
Example products using this active
  • Morestan
  • Joust
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 dustable powders, suspension concentrates and wettable powders.


ENVIRONMENTAL FATE

for chinomethionat

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 L3 Low
Solubility - In organic solvents at 20oC (mg l-1) 25000 L3 - Toluene -
40000 L3 - Dichloromethane -
1800 L3 - Hexane -
900 L3 - Cyclohexanone -
Melting point (oC) 170 L3 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 6.03 X 1003 Calculated -
Log P 3.78 L3 High
Bulk density (g ml-1)/Specific gravity 1.56 L3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 0.026 L3 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 6.09 X 10-03 L3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 0.73 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 1.71 X 10-03 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) 2 L3 Non-persistent
DT50 (lab at 20oC) - - -
DT50 (field) 30 F3 Moderately persistent
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Other data: field DT50 2.0-3.6 days (H3)
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value 4.0 R3 -
Note Strawberry fruit, n=1
Aqueous photolysis DT50 (days) at pH 7 Value 4 Q3 Moderately fast
Note Other source: 0.5 days (H3)
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 3.3 L3 Non-persistent
Note pH sensitive: DT50 10 days at pH 4, 3.75 hours at pH 9 all at 22 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 - P3 Mobile
Koc 38
Notes and range Other data source: 2300 mL/g (US3); 28235 (H3)
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for chinomethionat

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) 3000 Q2 Estimated Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) > 5000 L3 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) - L2 Rat, 2 year -
(ppm diet) 40 -
Birds - Acute LD50 (mg kg-1) 196 L3 Colinus virginianus Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 0.0334 L3 Lepomis macrochirus High
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 0.12 L3 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) 0.0085 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) 0.0069 F4 Scenedemus subspicatus High
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) - - -
Unknown mode acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) 100 L3 Moderate
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 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 Harmful Dose: 150 g ha-1
AA3 Typhlodromus pyri
-
Other arthropod (2) LR50 g ha-1 - - -
% Effect Harmful Dose: 150 g ha-1
AA3 Chrysoperla carnea
-
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for chinomethionat

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) > 5000 L3 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) > 5000 L3 Rat -
Mammals - Inhalation LC50 (mg l-1) 2.2 L3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.006 JMPR 1987 -
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 Some bystanders may experience a skin reaction
Occupational Occupational exposure may occur through inhalation and dermal contact
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 Potential for serious eye damage
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 No information available
CLP classification 2013 Health: H302, H312, H317, H319, H332, H361f, H373
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Reproduction risk category 3: R62
Xn - Harmful: R20/21/22, R43, R48/22
Xi - Irritant: R36
N - Dangerous for the environment: R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S2, S24, S37, S45, S60, S61
WHO Classification III - Slightly hazardous
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for chinomethionat

Language Name
English chinomethionat
French chinométhionate
German Chinomethionat
Danish chinomethionat
Italian chinometionato
Spanish chinometionato
Greek chinomethionat
Slovenian kinometionat
Polish chinometionat
Swedish -
Hungarian -
Dutch chinomethionat

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