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34557

Supelco

Paraquat diiodide-(dimethyl-d6)

PESTANAL®, analytical standard

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Synonym(s):
1,1′-Di(methyl-d3)-4,4′-bipyridinium diiodide, Methyl viologen-d6 diiodide, Paraquat-d6 diiodide
Empirical Formula (Hill Notation):
C12D6H8I2N2
Molecular Weight:
446.10
UNSPSC Code:
77101502
NACRES:
NA.24

grade

analytical standard

Quality Level

product line

PESTANAL®

shelf life

limited shelf life, expiry date on the label

application(s)

agriculture

format

neat

storage temp.

2-8°C

SMILES string

[2H]C([2H])([2H])[N+](C=C1)=CC=C1C2=CC=[N+](C([2H])([2H])[2H])C=C2

General description

Paraquat diiodide-(dimethyl-d6) is a deuterated analog of bipyridylium herbicide paraquat, wherein the dimethyl protons are replaced by deuterium.

Application

Paraquat diiodide-(dimethyl-d6) may be used as a deuterated internal standard to quantify paraquat in cowpeas by ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS).
Isotope-labeled compounds are increasingly used in isotope dilution mass spectrometry (IDMS) for the quantitative analysis of pesticides. The major advantage of using this technique is that the isotope-labeled compounds have nearly the same physical properties as their non-labeled counterpart analogs, and thus show identical behavior during the workup and sample preparation process. This helps in overcoming the problems of matrix effects generally encountered in the usual LC-MS/GC-MS analysis potentially resulting in biased results. By spiking the sample before workup with its isotope labeled analog, the loss of analyte that leads to matrix effects can be determined and compensated.

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT RE 1 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

危险化学品
非剧毒-急性毒性1

Certificates of Analysis (COA)

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Determination of paraquat and diquat: LC-MS method optimization and validation
Pizzutti IR, et al.
Food Chemistry, 209, 248-255 (2016)

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