Pyraclofos (Ref: OMS 3040)-Pesticide database

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Pyraclofos (Ref: OMS 3040)

(Also known as: TIA 230)

The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.

Environmental fate	Ecotoxicity	Human health
Environmental fate Moderate alert: Moderately persistent; Drainflow: Slightly mobile; Potential for particle bound transport: Medium	Ecotoxicity High alert: Fish acute ecotoxicity: High; Bees acute contact ecotoxicity: High Warning: Significant data are missing	Human health Moderate alert: Mammals acute toxicity: Moderate; Possible Carcinogen; Possible Reproduction/development effects; Possible Acetyl cholinesterase inhibitor; Neurotoxicant

GENERAL INFORMATION

An insecticide used to control Lepidoptera, Coleoptera, Acarina and nematodes in a range of crops. Is also occassionally used in veterinary medicine as an antiparasitic

Example pests controlled

Blackfly; Mites; Nematodes; Thrips; Corn borer; Budworms; Loopers; Cutworms; Rice weevil

Example applications

Tea; Ricve; Cotton; Corn; Potatoes; Soybean; Vegetables

Efficacy & activity

Availability status

Introduction & key dates

UK regulatory status

UK COPR regulatory status

Date COPR inclusion expires

UK LERAP status

No UK approval for use

EC Regulation 1107/2009 (repealing 91/414)

EC Regulation 1107/2009 status

Dossier rapporteur/co-rapporteur

Date EC 1107/2009 inclusion expires

EU Candidate for substitution (CfS)

Listed in EU database

Approved for use (✓) under EC 1107/2009 in the following EU Member States

ATAustria	BEBelgium	BGBulgaria	CYCyprus	CZCzech Republic	DEGermany	DKDenmark	EEEstonia	ELGreece

ESSpain	FIFinland	FRFrance	HRCroatia	HUHungary	IEIreland	ITItaly	LTLithuania	LULuxembourg

LVLatvia	MTMalta	NLNetherlands	PLPoland	PTPortugal	RORomania	SESweden	SISlovenia	SKSlovakia

Approved for use (✓) under EC 1107/2009 by Mutual Recognition of Authorisation and/or national regulations in the following EEA countries

ISIceland	NONorway

Additional information

Chemical structure

A molecule with one chiral centre resulting in a pair of enantiomers: S-(+)- and R-(−)-pyraclofos

Chemical formula

C₁₄H₁₈ClN₂O₃PS

Canonical SMILES

CCCSP(=O)(OCC)OC1=CN(N=C1)C2=CC=C(C=C2)Cl

Isomeric SMILES

International Chemical Identifier key (InChIKey)

QHGVXILFMXYDRS-UHFFFAOYSA-N

International Chemical Identifier (InChI)

InChI=1S/C14H18ClN2O3PS/c1-3-9-22-21(18,19-4-2)20-14-10-16-17(11-14)13-7-5-12(15)6-8-13/h5-8,10-11H,3-4,9H2,1-2H3

2D structure diagram/image available?

Insecticide, Nematicide, Veterinary substance

Substance groups

Organophosphate insecticide; Orgnothiophosphate insecticide; Phenylpyrazole insecticide

Minimum active substance purity

Known relevant impurities

Substance origin

Respiratory, contact and stomach action. Is an inhibitor of acetylcholinesterase.

Alternative/old CAS RN

US EPA chemical code

CLP index number

PIN (Preferred Identification Name)

(RS)-[O-1-(4-chlorophenyl)pyrazol-4-yl O-ethyl S-propyl phosphorothioate]

O-[1-(4-chlorophenyl)-1H-pyrazol-4-yl] O-ethyl S-propyl phosphorothioate

Other status information

Evidence of use in third world countries; PAN listed Highly Hazardous Chemical

Relevant Environmental Water Quality Standards

Herbicide Resistance Classification (HRAC)

Herbicide Resistance Classification (WSSA)

Insecticide Resistance Classification (IRAC)

Fungicide Resistance Classification (FRAC)

Examples of recorded resistance

Pale yellow oil

Example manufacturers & suppliers of products using this active now or historically

Sumitomo Chemical Co. Ltd.

Example products using this active

Starlex
Voltage
Boltage

Formulation and application details

Available in a variety of formulations including emulsifiable concentrates, granules and wettable powders.

ENVIRONMENTAL FATE

Source; quality score; and other information

Solubility - In water at 20 °C (mg l⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Solubility - In organic solvents at 20 °C (mg l⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Melting point (°C)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Boiling point (°C)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Degradation point (°C)

Flashpoint (°C)

Octanol-water partition coefficient at pH 7, 20 °C

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Fat solubility of residues

Density (g ml⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Dissociation constant pKa) at 25 °C

Vapour pressure at 20 °C (mPa)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Henry's law constant at 25 °C (Pa m³ mol⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Maximum UV-vis absorption L mol⁻¹ cm⁻¹

Surface tension (mN m⁻¹)

Source; quality score; and other information

General biodegradability

Soil degradation (days) (aerobic)

DT₅₀ (typical)

K4 K = Research datasets (e.g. Pandora, Demetra; these datasets no longer available). Norman Ecotoxicology database. (click here )
4 = Verified data

Moderately persistent

DT₅₀ (lab at 20 °C)

DT₅₀ (field)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Moderately persistent

DT₉₀ (lab at 20 °C)

DT₉₀ (field)

DT₅₀ modelling endpoint

Best available data

Dissipation rate RL₅₀ on plant matrix

Dissipation rate RL₅₀ on and in plant matrix

Aqueous photolysis DT₅₀ (days) at pH 7

Aqueous hydrolysis DT₅₀ (days) at 20 °C and pH 7

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Water-sediment DT₅₀ (days)

Water phase only DT₅₀ (days)

Soil adsorption and mobility

Source; quality score; and other information

Q2 Q = Miscellaneous data from online sources
2 = Unverified data of unknown source

Slightly mobile

Notes and range

Notes and range

Source; quality score; and other information

GUS leaching potential index

Low leachability

SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate

Potential for particle bound transport index

Potential for loss via drain flow

Slightly mobile

Bio-concentration factor

BCF (l kg⁻¹)

CT₅₀ (days)

Known soil and groundwater metabolites

None

Other known metabolites

Metabolite name and reference

Formation medium / Rate

Estimated maximum occurrence fraction

Metabolising enzymes

1-(4-chlorophenyl)pyrazol-4-yl-beta-D-glcopyranoside

des-S-propylpyraclofos

Rat (Urine, Faecal)

O-ethyl-S-propyl-phosphorothioate

monoethylphosphate

1-(4-chlorophenyl)pyrazol-4-yl-6-O-malonyl-beta-D-glcopyranoside

1-(4-chlorophenyl)pyrazo-4-yl sulfate

desethylpyraclofos

Rat (Urine, Faecal)

Terrestrial ecotoxicology

Source; quality score; and other information

Mammals - Acute oral LD₅₀ (mg kg⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Mammals - Short term dietary NOEL

L2 L = Pesticide manuals and hard copy reference books / other sources
2 = Unverified data of unknown source

Mammals - Chronic 21d NOAEL (mg kg⁻¹ bw d⁻¹)

Birds - Acute LD₅₀ (mg kg⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Colinus virginianus

Birds - Short term dietary (LC₅₀/LD₅₀)

Birds - Chronic 21d NOEL (mg kg⁻¹ bw d⁻¹)

Earthworms - Acute 14 day LC₅₀ (mg kg⁻¹)

Earthworms - Chronic NOEC, reproduction (mg kg⁻¹)

Soil micro-organisms

Acute LC₅₀ (mg kg⁻¹)

Chronic NOEC (mg kg⁻¹)

Non-target plants

Honeybees (Apis spp.)

Contact acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg bee⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Apis mellifera

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)

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 bee species (1)

Acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg insect⁻¹)

Mode of exposure

Other bee species (2)

Acute LD₅₀ (worst case from 24, 48 and 72 hour values - μg insect⁻¹)

Mode of exposure

Beneficial insects (Ladybirds)

Beneficial insects (Lacewings)

Beneficial insects (Parasitic wasps)

Beneficial insects (Predatory mites)

Beneficial insects (Ground beetles)

Aquatic ecotoxicology

Source; quality score; and other information

Fish - Acute 96 hour LC₅₀ (mg l⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Fish - Chronic 21 day NOEC (mg l⁻¹)

Aquatic invertebrates - Acute 48 hour EC₅₀ (mg l⁻¹)

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)

Algae - Acute 72 hour EC₅₀, growth (mg l⁻¹)

Algae - Chronic 96 hour NOEC, growth (mg l⁻¹)

Mesocosm study data

NOEAEC mg l⁻¹

NOEAEC mg l⁻¹

HUMAN HEALTH AND PROTECTION

Source; quality score; and other information

Threshold of Toxicological Concern (Cramer Class)

High (class III)

Mammals - Acute oral LD₅₀ (mg kg⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Mammals - Dermal LD₅₀ (mg kg⁻¹ body weight)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Mammals - Inhalation LC₅₀ (mg l⁻¹)

L3 L = Pesticide manuals and hard copy reference books / other sources
3 = Unverified data of known source

Other Mammal toxicity endpoints

ADI - Acceptable Daily Intake (mg kg⁻¹ bw day⁻¹)

ARfD - Acute Reference Dose (mg kg⁻¹ bw day⁻¹)

AAOEL - Acute Acceptable Operator Exposure Level (mg kg⁻¹ bw day⁻¹)

AOEL - Acceptable Operator Exposure Level - Systemic (mg kg⁻¹ bw day⁻¹)

Dermal penetration studies (%)

Dangerous Substances Directive 76/464

List I; List II

Exposure Routes

EU MRL pesticide database

GB MRL Register

Drinking Water Standards

Drinking Water MAC (μg l⁻¹)

Mammalian dose elimination route and rate

Rapidly absorbed, metabolised and excreted in the urine

Q3 Q = Miscellaneous data from online sources
3 = Unverified data of known source

Specific human health issues

Endocrine disruptor

?Possibly, status not identified

A0 A = Chromosome aberration (EFSA database)
0 = No data

B0 B = DNA damage/repair (EFSA database)
0 = No data

C0 C = Gene mutation (EFSA database)
0 = No data

D0 D = Genome mutation (EFSA database)
0 = No data

E0 E = Unspecified genotoxicity type (miscellaneous data source)
0 = No data

Reproduction / development effects

Acetyl cholinesterase inhibitor

?Possibly, status not identified

?Possibly, status not identified

?Possibly, status not identified

Respiratory tract irritant

Skin sensitiser

XNo, known not to cause a problem

XNo, known not to cause a problem

XNo, known not to cause a problem

General human health issues

Harmful if swallowed

Handling issues

Value and interpretation

IMDG Transport Hazard Class 6.1

CLP classification 2013

WHO Classification

II (Moderately hazardous)

Waste disposal & packaging

Packaging Group III (minor danger)

Shelf-life, storage, stability and reactivity

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