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36142

Supelco

Malaoxon

PESTANAL®, analytical standard

Synonym(s):

Diethyl 2-[(dimethoxyphosphoryl)sulfanyl]succinate

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About This Item

Empirical Formula (Hill Notation):
C10H19O7PS
CAS Number:
Molecular Weight:
314.29
Beilstein:
1804523
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

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

SMILES string

CCOC(=O)CC(SP(=O)(OC)OC)C(=O)OCC

InChI

1S/C10H19O7PS/c1-5-16-9(11)7-8(10(12)17-6-2)19-18(13,14-3)15-4/h8H,5-7H2,1-4H3

InChI key

WSORODGWGUUOBO-UHFFFAOYSA-N

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General description

Malaoxon is one of the major metabolites of malathion and a widely used insecticide in agriculture. Its mode of action includes DNA damage in human lymphocytes by the mechanism of oxidative action.

Application

Malaoxon may be used as a reference standard for the determination of malaoxon in plasma and urine samples of rat by high-performance liquid chromatography.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

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Legal Information

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 2

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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Simultaneous determination of malathion, permethrin, DEET (N, N-diethyl-m-toluamide), and their metabolites in rat plasma and urine using high performance liquid chromatography.
Abu-Qare AW, et al.
Journal of Pharmaceutical and Biomedical Analysis, 26(2), 291-299 (2001)
Genotoxicity of Malaoxon: Induction of oxidized and methylated bases and protective effect of alpha-Tocopherol.
Blasiak J and Stankowska D
Pesticide Biochemistry and Physiology, 71(2), 88-96 (2001)
S Padilla et al.
Journal of toxicology and environmental health. Part A, 67(18), 1477-1489 (2004-09-17)
Some, but not all, organophosphorus pesticides are more acutely toxic to the young as compared to adults. We have developed an in vitro assay that measures the detoxification potential (via carboxylesterase and A-esterases) of tissues. Previous results using this in
Baljinder Singh et al.
Biotechnology letters, 34(5), 863-867 (2012-04-06)
An axenic bacterial strain, Lysinibacillus sp. KB1, was isolated from malathion-contaminated soil. It tolerated malathion up to 0.15 % and, under aerobic conditions, utilized it as sole carbon source. 20 % malathion and 47 % malaoxon were degraded out of the initially provided
Rafael C Lajmanovich et al.
Ecotoxicology and environmental safety, 73(7), 1517-1524 (2010-08-17)
Soybean fields provide habitats for many species of amphibians. However, the persistence and health of amphibian populations may be at risk from the increasing use of pesticides and other agricultural chemicals. We examined the activities of acetylcholinesterase (AChE), butyrylcholinesterase (BChE)

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