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Merck
CN

32437

Pyrazoxyfen

PESTANAL®, analytical standard

Synonym(s):

2-[4-(2,4-Dichlorobenzoyl)-1,3-dimethylpyrazol-5-yloxy]acetophenone

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About This Item

Empirical Formula (Hill Notation):
C20H16Cl2N2O3
CAS Number:
71561-11-0
Molecular Weight:
403.26
NACRES:
NA.24
PubChem Substance ID:
329754213
UNSPSC Code:
41116107
MDL number:
MFCD00274563

Key Documents

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InChI key

FKERUJTUOYLBKB-UHFFFAOYSA-N

SMILES string

Cc1nn(C)c(OCC(=O)c2ccccc2)c1C(=O)c3ccc(Cl)cc3Cl

InChI

1S/C20H16Cl2N2O3/c1-12-18(19(26)15-9-8-14(21)10-16(15)22)20(24(2)23-12)27-11-17(25)13-6-4-3-5-7-13/h3-10H,11H2,1-2H3

grade

analytical standard

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

Quality Level

100

General description

Pyrazoxyfen is used as a pre- or post-emergence herbicide for the weed control in annual and perennial crops.

Application

Pyrazoxyfen may be used as an analytical reference standard for the determination of the analyte in:
  • Shellfish and human serum samples by QuEChERS (quick, easy, cheap, effective, rugged and safe) extraction followed by liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) with multiple reaction monitoring (MRM) detection.
  • Food matrices by gas chromatography-mass spectrometry (GC-MS) with MRM detection.

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

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

hcodes

H302,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

农药列管产品
This item has

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF1536
BCBV3678

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Metabolomics-a robust bioanalytical approach for the discovery of the modes-of-action of pesticides: a review.
Aliferis KA and Jabaji S
Pesticide Biochemistry and Physiology, 100(2), 105-117 (2011)
Compensation of matrix effects in gas chromatography-mass spectrometry analysis of pesticides using a combination of matrix matching and multiple isotopically labeled internal standards.
Tsuchiyama T, et al.
Journal of Chromatography A, 1524(13), 233-245 (2017)
Analysis of banned veterinary drugs and herbicide residues in shellfish by liquid chromatography-tandem mass spectrometry (LC/MS/MS) and gas chromatography-tandem mass spectrometry (GC/MS/MS).
Chang GR, et al.
Marine Pollution Bulletin, 113(1-2), 579-584 (2016)
Validation of a Multiresidue Analysis Method for 379 Pesticides in Human Serum Using Liquid Chromatography?Tandem Mass Spectrometry.
Shin Y, et al.
Journal of Agricultural and Food Chemistry, 66(13), 3550-3560 (2018)

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