94093

Parathion-methyl-d6 (dimethyl-d₆)

PESTANAL^®, analytical standard

• Synonym(s): O,O-Dimethyl-d₆ O-(4-nitrophenyl) phosphorothioate, Methyl parathion-d₆
• Empirical Formula (Hill Notation): C₈D₆H₄NO₅PS
• CAS Number: 96740-32-8
• Molecular Weight: 269.24
• MDL number: MFCD03428104
• UNSPSC Code: 77101502
• PubChem Substance ID: 329770296
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• isotopic purity: ≥99 atom % D
• product line: PESTANAL^®
• assay: ≥95.0% (HPLC)
• shelf life: limited shelf life, expiry date on the label
• storage condition: under inert gas (Argon)
• application(s): agriculture; environmental
• format: neat
• SMILES string: S=P(OC([2H])([2H])[2H])(OC([2H])([2H])[2H])OC1=CC=C([N+]([O-])=O)C=C1
• InChI: 1S/C8H10NO5PS/c1-12-15(16,13-2)14-8-5-3-7(4-6-8)9(10)11/h3-6H,1-2H3/i1D3,2D3
• InChI key: RLBIQVVOMOPOHC-WFGJKAKNSA-N

Description

General description

Parathion-methyl-d₆ (dimethyl-d₆) is an isotope-labeled analog of the organophosphorus insecticide, parathion-methyl.

Application

Isotope-labeled compounds are increasingly used in isotope dilution mass spectrometry (IDMS) for the quantitative analysis of pesticides. The main advantage of using the IDMS technique is because isotope-labeled compounds have nearly the same physical properties as their non-labeled counterpart analog, 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.

Analysis Note

identification (LC-MS): identity conforms

Legal Information

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

Safety Information

• pictograms: GHS02,GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H226,H300 + H330,H311,H373,H410
• pcodes: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P314
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Acute Tox. 3 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - STOT RE 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 114.8 °F - open cup
• flash_point_c: 46 °C - open cup