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Safety Information

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:
1634-78-2
Molecular Weight:
314.29
Beilstein:
1804523
MDL number:
MFCD00055461
UNSPSC Code:
41116107
PubChem Substance ID:
329755290
NACRES:
NA.24

grade

analytical standard

Quality Level

100

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

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Signal Word

Danger

Hazard Statements

H301,H310,H351,H411

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

36142-100MG:
36142-VAR:
36142-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL8667
BCCK0635
BCCH6956
BCCF6826
BCCD0439

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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)
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)
Agustín Basso et al.
Environmental science and pollution research international, 19(1), 214-225 (2011-07-01)
In this study, we determined normal serum butyrylcholinesterase (BChE) and carboxylesterase (CbE) activities in Tupinambis merianae in order to obtain reference values for organophosphorus pesticide monitoring. Forty-two T. merianae individuals were grouped by sex and size to identify potential differences
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)
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
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