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Merck

46192

Paraoxon-methyl

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

Product Name

Paraoxon-methyl, PESTANAL®, analytical standard

InChI key

BAFQDKPJKOLXFZ-UHFFFAOYSA-N

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

grade

analytical standard

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

Quality Level

100

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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.

General description

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

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

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Danger

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCJ9984
BCCH6269
BCCF7777
BCCC4663
BCBV6192

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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)
Renda Hawwa et al.
Journal of molecular biology, 393(1), 36-57 (2009-07-28)
An enzyme from the amidohydrolase family from Deinococcus radiodurans (Dr-OPH) with homology to phosphotriesterase has been shown to exhibit activity against both organophosphate (OP) and lactone compounds. We have characterized the physical properties of Dr-OPH and have found it to
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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