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Merck
CN

34331

Difenzoquat methyl sulfate

PESTANAL®, analytical standard

Synonym(s):

1,2-Dimethyl-3,5-diphenylpyrazolium methyl sulfate

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About This Item

Empirical Formula (Hill Notation):
C18H20N2O4S
CAS Number:
43222-48-6
Molecular Weight:
360.43
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329754948
EC Number:
256-152-5
Beilstein/REAXYS Number:
4093655
MDL number:
MFCD00055342

Key Documents

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Product Name

Difenzoquat methyl sulfate, PESTANAL®, analytical standard

InChI key

XQEMNBNCQVQXMO-UHFFFAOYSA-M

InChI

1S/C17H17N2.CH4O4S/c1-18-16(14-9-5-3-6-10-14)13-17(19(18)2)15-11-7-4-8-12-15;1-5-6(2,3)4/h3-13H,1-2H3;1H3,(H,2,3,4)/q+1;/p-1

SMILES string

COS([O-])(=O)=O.Cn1c(cc(-c2ccccc2)[n+]1C)-c3ccccc3

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

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Application

Difenzoquat methyl sulfate may be used as an analytical reference standard for the determination of the analyte in animal tissues, barley and cowpea by various 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

Difenzoquat is a herbicide used for the control of wild oats.

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

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCJ1068
BCBW5951

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Multi-residue determination of 171 pesticides in cowpea using modified QuEChERS method with multi-walled carbon nanotubes as reversed-dispersive solid-phase extraction materials.
Han Y, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 1031(1-2), 99-108 (2016)
Jong-Min Lee et al.
Viruses, 11(3) (2019-03-16)
The genetically engineered M13 bacteriophage (M13 phage), developed via directed evolutionary screening process, can improve the sensitivity of sensors because of its selective binding to a target material. Herein, we propose a screening method to develop a selective and sensitive
Analysis of difenzoquat herbicide in wheat products by reversed-phase liquid chromatography.
Lawrence JF, et al.
Journal of Agricultural and Food Chemistry, 29(4), 887-889 (1981)
Comparison of an acetonitrile extraction/partitioning and ?dispersive solid-phase extraction? method with classical multi-residue methods for the extraction of herbicide residues in barley samples.
Diez C, et al.
Journal of Chromatography A, 1131(1-2), 11-23 (2006)
Jonas O Vinhal et al.
Ecotoxicology and environmental safety, 145, 597-604 (2017-08-13)
This work reports a study about the adsorption of the herbicides diquat and difenzoquat from aqueous medium employing polyurethane foam (PUF) as the adsorbent and sodium dodecylsulfate (SDS) as the counter ion. The adsorption efficiency was shown to be dependent
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