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Merck
CN

33395

Methamidophos

PESTANAL®, analytical standard

Synonym(s):

O,S-Dimethyl phosphoramidothioate

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About This Item

Empirical Formula (Hill Notation):
C2H8NO2PS
CAS Number:
10265-92-6
Molecular Weight:
141.13
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329754521
EC Number:
233-606-0
Beilstein/REAXYS Number:
8137714
MDL number:
MFCD00041808

Key Documents

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Product Name

Methamidophos, PESTANAL®, analytical standard

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

product line

PESTANAL®

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
NMR: suitable
gas chromatography (GC): suitable

impurities

≤0.5% water (Karl Fischer)

mp

42-45 °C

suitability

passes test for identity (NMR)

application(s)

agriculture
environmental

format

neat

storage temp.

−20°C

Quality Level

100

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Application

Methamidophos may be used as a reference standard for the determination of the analyte in human serum samples using gas chromatography with mass spectrometry (GC-MS).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

Methamidophos is a broad spectrum organophosphate pesticide used for controlling a variety of plant and soil pests in agricultural crops.

Legal Information

PESTANAL is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

413.6 °F - closed cup

flash_point_c

212 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Regulatory Information

剧毒化学品
北京危化品禁限
危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCL1280
BCCG2949
BCCB0580
BCBT1513
BCBS9211V

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Impacts of methamidophos on the biochemical, catabolic, and genetic characteristics of soil microbial communities.
Wang CM, et al.
Critical reviews in environmental science and technology, 40(3), 778-788 (2008)
Simultaneous analysis of acephate and methamidophos in human serum by improved extraction and GC-MS.
Adachi N, et al.
Forensic Toxicology, 26(2), 76-76 (2008)
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
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
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
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