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Merck
CN

PS676

Methamidophos

analytical standard

Synonym(s):

O,S-Dimethyl phosphoramidothioate

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About This Item

Empirical Formula (Hill Notation):
C2H8NO2PS
CAS Number:
Molecular Weight:
141.13
EC Number:
233-606-0
UNSPSC Code:
41116107
PubChem Substance ID:
Beilstein/REAXYS Number:
8137714
MDL number:
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InChI key

NNKVPIKMPCQWCG-UHFFFAOYSA-N

InChI

1S/C2H8NO2PS/c1-5-6(3,4)7-2/h1-2H3,(H2,3,4)

SMILES string

COP(N)(=O)SC

grade

analytical standard

packaging

ampule of 100 mg

manufacturer/tradename

Chem Service, Inc. PS-676

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

agriculture
environmental

format

neat

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General description

Methamidophos is a nonselective type of organophosphorus insecticide and a potent acetylcholinesterase inhibitor, which is commonly used in controlling a broad spectrum of pest insects such as chewing and sucking insects and spider mites on citrus fruits, ornamental plants, stone fruits and other intensive agricultural crops.

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

413.6 °F - closed cup

flash_point_c

212 °C - closed cup

Regulatory Information

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Certificates of Analysis (COA)

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Titanium dioxide mediated photocatalytic degradation of methamidophos in aqueous phase.
Wei L, et al.
Journal of Hazardous Materials, 164(1), 154-160 (2009)
Guilherme L Emerick et al.
Toxicology, 292(2-3), 145-150 (2011-12-27)
The current Organisation for Economic Co-operation and Development (OECD) guidelines for evaluating organophosphorus-induced delayed neuropathy (OPIDN) require the observation of dosed animals over several days and the sacrifice of 48 hens. Adhering to these protocols in tests with enantiomers is
Carla S Lima et al.
Neurotoxicology, 32(6), 718-724 (2011-08-30)
Epidemiologic studies describe a potential risk of depression and suicide in farm workers exposed to organophosphates (OPs). In a previous study we observed an increase in depressive-like behavior in adult mice exposed to the OP pesticide methamidophos. Considering the association
Teresa Rodríguez et al.
Occupational and environmental medicine, 69(2), 119-125 (2011-07-05)
This study assessed pesticide exposure of children in rural Nicaragua in relation to parental pesticide use, from around conception to current school age, as part of an epidemiological evaluation of neurodevelopment effects. We included 132 children whose parents were subsistence
Bao-Jian Hang et al.
Applied and environmental microbiology, 78(6), 1962-1968 (2012-01-17)
De-esterification is an important degradation or detoxification mechanism of sulfonylurea herbicide in microbes and plants. However, the biochemical and molecular mechanisms of sulfonylurea herbicide de-esterification are still unknown. In this study, a novel esterase gene, sulE, responsible for sulfonylurea herbicide

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