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Merck
CN

PS1096

Metasystox I

analytical standard

Synonym(s):

Demeton-S-methyl, Methyldemetone, S-(2-Ethylthioethyl) O,O-dimethyl phosphorothioate

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About This Item

Empirical Formula (Hill Notation):
C6H15O3PS2
CAS Number:
Molecular Weight:
230.29
EC Number:
213-052-6
UNSPSC Code:
41116107
PubChem Substance ID:
Beilstein/REAXYS Number:
1707311
MDL number:
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InChI key

WEBQKRLKWNIYKK-UHFFFAOYSA-N

InChI

1S/C6H15O3PS2/c1-4-11-5-6-12-10(7,8-2)9-3/h4-6H2,1-3H3

SMILES string

CCSCCSP(=O)(OC)OC

grade

analytical standard

packaging

ampule of 50 mg

manufacturer/tradename

Chem Service, Inc. PS-1096

application(s)

agriculture
environmental

storage temp.

−20°C

pictograms

Skull and crossbonesEnvironment

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

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Biochemical and histological effects of the aphicide demeton-S-methyl on house sparrows (Passer domesticus) under field conditions.
K A Tarrant et al.
Bulletin of environmental contamination and toxicology, 48(3), 360-366 (1992-03-01)
D Schludecker et al.
Zeitschrift fur Rechtsmedizin. Journal of legal medicine, 101(1), 55-60 (1988-01-01)
A case of lethal suicidal intoxication with demeton-S-methyl is reported. Capillary chromatography on wide-bore columns (CP-sil 5, 0.53 mm ID, 1 micron film thickness) was used for the quantitative determinations of this substance in the body fluids and tissues.
V Vallet et al.
Toxicology, 246(1), 73-82 (2008-02-26)
The organophosphorus (OP) chemical warfare V agent O-ethyl-S-[2(di-isopropylamino)ethyl] methyl phosphonothioate (VX), is a highly toxic compound which mainly penetrates the body via percutaneous pathways. Hence, the following prerequisite: to ascertain compound absorption and percutaneous profile distribution with a view to
P J Lewis et al.
Clinical chemistry, 27(6), 926-929 (1981-06-01)
We describe an automated kinetic method for erythrocyte acetylcholinesterase (EC 3.1.1.7) and plasma cholinesterase (EC 3.1.1.8) based on Ellman's colorimetric method. Quinidine sulfate is used as an inhibitor of plasma cholinesterase during the measurement of erythrocyte acetylcholinesterase activity, obviating the
L B Rolfsjord et al.
Veterinary and human toxicology, 40(4), 222-224 (1998-07-31)
A previously healthy 2-y-old boy was admitted to the hospital 30 min after the ingestion of 10 ml of demeton-S-methyl (META-SYSTOX). Treatment consisted of gastric decontamination, atropine, reactivator (obidoxime) and supportive therapy. Atropine was given to control the muscarinic features.

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