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Merck
CN

36158

Methidathion

PESTANAL®, analytical standard

Synonym(s):

S-2,3-Dihydro-5-methoxy-2-oxo-1,3,4-thiodiazol-3-yl-methyl-O,O-dimethyl-phosphodithioate

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About This Item

Empirical Formula (Hill Notation):
C6H11N2O4PS3
CAS Number:
950-37-8
Molecular Weight:
302.33
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329755304
EC Number:
213-449-4
Beilstein/REAXYS Number:
619915
MDL number:
MFCD00055286

Key Documents

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InChI key

MEBQXILRKZHVCX-UHFFFAOYSA-N

InChI

1S/C6H11N2O4PS3/c1-10-5-7-8(6(9)16-5)4-15-13(14,11-2)12-3/h4H2,1-3H3

SMILES string

COC1=NN(CSP(=S)(OC)OC)C(=O)S1

grade

analytical standard

product line

PESTANAL®

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

application(s)

agriculture
environmental

format

neat

storage temp.

2-8°C

Quality Level

100

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General description

Methidathion is a dimethoxyorganic phosphorus pesticide and cholinesterase inhibitor.

Application

Methidathion may be used as a reference standard for the determination of methidathion in serum and urine samples of acute poisoning by high-performance liquid chromatography with diode-array detector.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Legal Information

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

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Danger

Hazard Classifications

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

Storage Class

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

wgk

WGK 3

flash_point_f

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

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

Regulatory Information

农药列管产品
危险化学品
非剧毒-急性毒性1
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Certificates of Analysis (COA)

Lot/Batch Number
BCCJ3747
BCBX1633

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Evaluation of the carcinogenic potential of pesticides: 2. Methidathion.
Quest J A, et al.
Regulatory Toxicology and Pharmacology, 12(2), 117-126 (1990)
Determination of organophosphorus pesticides in biological samples of acute poisoning by HPLC with diode-array detector.
Cho Y, et al.
Chemical & Pharmaceutical Bulletin, 45(4), 737-740 (1997)
L Sánchez et al.
Chemosphere, 63(4), 616-625 (2005-10-12)
Four experimental plots located in Granada (Spain) were used to investigate the potential movement of the insecticide methidathion during three treatments in a period of three years. To increase pesticide soil retention a municipal biosolid and the cationic surfactant, tetradecyl
Osman Gokalp et al.
Toxicology and industrial health, 19(2-6), 63-67 (2005-02-09)
Methidathion (MD) is one of the most widely used organophosphate insecticides (OPIs) for public health programmes and agricultural purposes. However it causes side effects such as liver disorders. We examined the ameliorating effects of a combination of vitamins E and
Mário Eidi Sato et al.
Experimental & applied acarology, 39(1), 13-24 (2006-05-09)
The purpose of this study was to evaluate the cytochrome P450-dependent monooxygenase activities in methidathion resistant and susceptible strains of Amblyseius womersleyi Schicha. Artificial laboratory selections for resistance and susceptibility to methidathion were performed in an organophosphate resistant strain of
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