Description

3,5,6-Trichloro-2-Pyridinol-13C5 is a stable isotope-labeled analog of the environmental metabolite 3,5,6-trichloro-2-pyridinol (TCPy). This compound is essential for high-precision analytical applications, providing an internal standard for accurate quantification and method validation. It is primarily required by analytical laboratories, agrochemical manufacturers, and environmental testing facilities engaged in sophisticated mass spectrometry workflows.

Application

• Internal Standard for Mass Spectrometry (LC-MS/MS, GC-MS): Used as a quantitative reference standard for the analysis of chlorpyrifos and chlorpyrifos-methyl metabolites in environmental and biological samples.
• Environmental Fate and Metabolism Studies: Enables precise tracking and quantification of pesticide degradation pathways and metabolite formation in soil, water, and plant systems.
• Human Biomonitoring and Toxicological Research: Critical for the accurate measurement of TCPy exposure biomarkers in urine and blood for occupational health and epidemiological studies.
• Agrochemical Research & Development: Supports the development and validation of analytical methods for new pesticide formulations and regulatory submissions.
• Food Safety Testing: Employed in residue analysis to ensure compliance with maximum residue limits (MRLs) for organophosphate pesticides in food commodities.
• Quality Control and Method Validation: Serves as a certified reference material (CRM) to ensure the accuracy, precision, and reliability of analytical methods in contract research organizations (CROs) and regulatory labs.

Basic Information

Product Name	3,5,6-Trichloro-2-Pyridinol-13C5
CAS No.	1330171-47-5
Molecular Formula	13C5HCl3NO
Molecular Weight	~218.4 (for 13C5 labeled form)
Synonyms	TCPy-13C5; 3,5,6-Trichloro-2-pyridinol-13C5; 2-Pyridinol, 3,5,6-trichloro-, 13C5-labeled; Chlorpyrifos Metabolite-13C5; Chlorpyrifos-methyl Metabolite-13C5; 3,5,6-Trichloro-2-hydroxypyridine-13C5; 2-Hydroxy-3,5,6-trichloropyridine-13C5
EINECS	Contact for details

Quality Control

Our 3,5,6-Trichloro-2-Pyridinol-13C5 is manufactured under strict quality systems to ensure the highest isotopic and chemical purity for trace analysis. Each batch is characterized by advanced spectroscopic and chromatographic techniques, including NMR, HPLC, and LC-MS/MS, to confirm identity, isotopic enrichment, and purity. Certificates of Analysis (COA) detailing lot-specific data are provided to guarantee performance as an internal standard.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry environment. For long-term stability, consider storage at 2-8°C.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Enrichment (13C5)	≥ 99 atom % 13C
Chemical Purity (by HPLC)	≥ 98.0%
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.