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46192

Paraoxon-methyl

Name: Paraoxon-methyl
Brand: SIAL

PESTANAL^®, analytical standard

Synonym(s):

O,O-Dimethyl O-(4-nitrophenyl) phosphate

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About This Item

Empirical Formula (Hill Notation):

C₈H₁₀NO₆P

CAS Number:

950-35-6

Molecular Weight:

247.14

UNSPSC Code:

41116107

NACRES:

NA.24

PubChem Substance ID:

329757097

MDL number:

MFCD00055531

Beilstein/REAXYS Number:

1884904

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grade

analytical standard

Quality Level

100

product line

PESTANAL^®

shelf life

limited shelf life, expiry date on the label

technique(s)

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

refractive index

n20/D 1.523

mp

0-4 °C

suitability

passes test for identity (NMR)

application(s)

agriculture
environmental

format

neat

storage temp.

2-8°C

SMILES string

COP(=O)(OC)Oc1ccc(cc1)[N+]([O-])=O

InChI

1S/C8H10NO6P/c1-13-16(12,14-2)15-8-5-3-7(4-6-8)9(10)11/h3-6H,1-2H3

InChI key

BAFQDKPJKOLXFZ-UHFFFAOYSA-N

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Related Categories

Pesticide Standards

General description

Paraoxon-methyl is an oxon derivative and a major metabolite of parathionbelonging to the class of organophosphate insecticides.

Application

Paraoxon-methyl may be used as an analytical reference standard for the quantification of the analyte in oil samples and environmental samples using different chromatography techniques.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Legal Information

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

pictograms

GHS06,GHS08,GHS09

signalword

Danger

hcodes

H300 + H310 + H330,H372,H410

pcodes

P262 - P264 - P273 - P280 - P302 + P352 + P310 - P304 + P340 + P310

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 1 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 1

target_organs

Nervous system

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

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品

剧毒化学品

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Characterization of organophosphorus compounds and phenylurea herbicides by positive and negative ion thermospray liquid chromatography-mass spectrometry

Barcelo.D and Albaiges.J

Journal of Chromatography A, 474(1), 163-173 (1989)

Determination of organophosphorus pesticide residues in Cilento (Campania, Italy) virgin olive oil by capillary gas chromatography

Rastrelli L, et al.

Food Chemistry, 79(3), 303-305 (2002)

Applications of thermospray liquid chromatography-mass spectrometry in photochemical studies of pesticides in water

Durand.G, et al.

Journal of Chromatography A, 554(1-2), 233-250 (1991)

Inhibition of recombinant human carboxylesterase 1 and 2 and monoacylglycerol lipase by chlorpyrifos oxon, paraoxon and methyl paraoxon.

J Allen Crow et al.

Toxicology and applied pharmacology, 258(1), 145-150 (2011-11-22)

Oxons are the bioactivated metabolites of organophosphorus insecticides formed via cytochrome P450 monooxygenase-catalyzed desulfuration of the parent compound. Oxons react covalently with the active site serine residue of serine hydrolases, thereby inactivating the enzyme. A number of serine hydrolases other

Methyl-paraoxon comparative inhibition kinetics for acetylcholinesterases from brain of neotropical fishes.

Moacelio V Silva Filho et al.

Toxicology letters, 153(2), 247-254 (2004-09-29)

Acetylcholinesterase (AChE) sensitivity to the organophosphorus (OP) pesticide methyl-paraoxon was measured in fourteen species of Neotropical marine and freshwater fish found in the waters of Brazil. The rate constant for phosphorylation, kp, the dissociation constant, kd, the second order rate

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Global Trade Item Number

SKU	GTIN
46192-100MG-R	04061832344782

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