Description

Thiophanate-Methyl-D 6 (O,o-Dimethyl-D6) is a deuterated isotopologue of the broad-spectrum systemic fungicide thiophanate-methyl, specifically labeled at the O,O-dimethyl positions. This compound is essential for use as an internal standard in quantitative analytical methods, providing unmatched accuracy and reliability for trace-level detection and measurement. It is critically needed by researchers and quality control laboratories in the agrochemical, environmental monitoring, and regulatory compliance sectors to ensure precise data integrity in mass spectrometry and NMR analyses.

Application

• Primary use as a deuterated internal standard for the accurate quantification of thiophanate-methyl and its metabolites via LC-MS/MS and GC-MS.
• Critical for residue analysis in agricultural products, soil, and water to meet global food safety and environmental regulations.
• Enables metabolism and pharmacokinetic studies in research focused on fungicide efficacy and environmental fate.
• Supports method development and validation in analytical laboratories to ensure compliance with ISO 17025 and GLP standards.
• Used in the manufacturing of certified reference materials (CRMs) for instrument calibration and quality assurance programs.

Basic Information

Product Name	Thiophanate-Methyl-D 6 (O,o-Dimethyl-D6)
CAS No.	1398065-77-4
Molecular Formula	C₁₂H₁₀D₆N₄O₄S₂
Molecular Weight	342.45 g/mol
Synonyms	Thiophanate-methyl-d6; Dimethyl 4,4'-(o-phenylene)bis(3-thioallophanate)-d6; 1,2-Di-(3-methoxycarbonyl-2-thioureido)benzene-d6; Topsin M-d6; Methyl Thiophanate-d6; 4,4'-(o-Phenylene)bis(3-thioallophanic acid) dimethyl ester-d6; NF 44-d6; (1,2-Phenylenebis(iminocarbonothioyl))biscarbamic acid dimethyl ester-d6
EINECS	Contact for details

Quality Control

Every batch of our deuterated standards is produced and analyzed under strict quality control to ensure the highest isotopic purity and chemical integrity required for analytical applications. We provide comprehensive Certificates of Analysis (COA) detailing isotopic enrichment (typically >98 atom % D), chemical purity (by HPLC), and confirmatory data from NMR and mass spectrometry. Our quality system supports compliance with relevant research and regulatory standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under anhydrous conditions. For long-term stability, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity	≥ 98 atom % D
Chemical Purity	≥ 95%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.