Pyraclofos (Ref: OMS 3040) |

Last updated: 05/02/2024
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(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 |
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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 |
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Blackfly; Mites; Nematodes; Thrips; Corn borer; Budworms; Loopers; Cutworms; Rice weevil |
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Tea; Rice; Cotton; Corn; Potatoes; Soybean; Vegetables |
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- |
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- |
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1989, registered Japan |
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Not approved |
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Expired |
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No UK approval for use as a pesticide |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved |
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- |
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Expired |
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- |
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Yes |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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A molecule with one chiral centre resulting in a pair of enantiomers: S-(+)- and R-(−)-pyraclofos |
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C₁₄H₁₈ClN₂O₃PS |
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CCCSP(=O)(OCC)OC1=CN(N=C1)C2=CC=C(C=C2)Cl |
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No data |
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QHGVXILFMXYDRS-UHFFFAOYSA-N |
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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 |
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Yes |
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Insecticide, Nematicide, Veterinary substance |
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Organophosphate insecticide; Orgnothiophosphate insecticide; Phenylpyrazole insecticide |
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- |
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- |
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Synthetic |
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Respiratory, contact and stomach action. Acetylcholinesterase inhibitor. |
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89784-60-1 |
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77458-01-6 |
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618-301-6 |
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None allocated |
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- |
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93460 |
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No data found |
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360.8 |
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- |
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(RS)-[O-1-(4-chlorophenyl)pyrazol-4-yl O-ethyl S-propyl phosphorothioate] |
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O-[1-(4-chlorophenyl)-1H-pyrazol-4-yl] O-ethyl S-propyl phosphorothioate |
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Evidence of use in third world countries; PAN listed Highly Hazardous Chemical |
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- |
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Not applicable |
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Not applicable |
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1B |
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Not applicable |
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- |
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Pale yellow oil |
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- Sumitomo Chemical Co. Ltd.
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Available in a variety of formulations including emulsifiable concentrates, granules and wettable powders. |
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33 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderate |
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Miscible |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Acetone |
- |
Miscible |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Ethanol |
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Miscible |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Methanol |
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Not applicable |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
- |
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454 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
- |
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- |
- |
- |
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- |
- |
- |
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5.89 X 1003 |
Calculated |
- |
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3.77 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
High |
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- |
- |
- |
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- |
- |
- |
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1.271 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
- |
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- |
- |
- |
- |
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1.60 X 10-03 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low volatility |
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1.75 X 10-05 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Non-volatile |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
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39 |
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Moderately persistent |
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- |
- |
- |
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50 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderately persistent |
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- |
- |
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- |
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- |
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Best available data |
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- |
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- |
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- |
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- |
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29 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Non-persistent |
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- |
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- |
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- |
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- |
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- |
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- |
- |
- |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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Soil adsorption and mobility |
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- |
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source |
Slightly mobile |
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2095 |
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Estimated |
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- |
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- |
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- |
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- |
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1.15 |
Calculated |
Low leachability |
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2.47 X 10-02 |
Calculated |
- |
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- |
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High |
Calculated |
- |
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Slightly mobile |
Calculated |
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- |
- |
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- |
- |
- |
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- |
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Known soil and groundwater metabolites |
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None
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1-(4-chlorophenyl)pyrazol-4-yl-6-O-malonyl-beta-D-glcopyranoside |
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Plant |
0.51 |
1-(4-chlorophenyl)pyrazo-4-yl sulfate |
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Rat (Urine) |
0.7 |
desethylpyraclofos |
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Rat (Urine, Faecal) |
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1-(4-chlorophenyl)pyrazol-4-yl-beta-D-glcopyranoside |
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Plant |
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des-S-propylpyraclofos |
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Rat (Urine, Faecal) |
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O-ethyl-S-propyl-phosphorothioate |
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Rat (Urine) |
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monoethylphosphate |
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Rat (Urine) |
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Terrestrial ecotoxicology |
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237 |
Rat |
Moderate |
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0.1 |
L2 L = Pesticide manuals and hard copy reference books / other sources 2 = Unverified data of unknown source Rat 2 yr |
High |
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- |
- |
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- |
- |
- |
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164 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Colinus virginianus |
Moderate |
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- |
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- |
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- |
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0.953 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Apis mellifera |
High |
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- |
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- |
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- |
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- |
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- |
- |
- |
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0.028 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Cyprinidae spp. |
High |
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- |
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- |
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HUMAN HEALTH AND PROTECTION |
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High (class III) |
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- |
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237 |
Rat |
Moderate |
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2000 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Rat |
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1.46 |
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source Rat |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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List I; List II |
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- |
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- |
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EU MRL pesticide database |
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- |
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- |
- |
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- |
- |
- |
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Rapidly absorbed, metabolised and excreted in the urine |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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Carcinogen |
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Endocrine disruptor |
XNo, known not to cause a problem |
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 |
No data found |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
?Possibly, status not identified |
✓Yes, known to cause a problem |
?Possibly, status not identified |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
No data found |
Eye irritant |
Phototoxicant |
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XNo, known not to cause a problem |
No data found |
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Harmful if swallowed |
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IMDG Transport Hazard Class 6.1 |
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Health: H301 |
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II (Moderately hazardous) |
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UN2811 |
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Packaging Group III (minor danger) |
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- |
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pyraclofos |
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pyraclofos |
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Pyraclofos |
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pyraclofos |
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piraclofos |
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piraclofos |
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- |
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pyraklofos |
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- |
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- |
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Record last updated: |
05/02/2024 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |