Description

Metalaxyl-(Phenyl-13C6) is a stable isotope-labeled analog of the systemic fungicide metalaxyl, where six carbon atoms on the phenyl ring are replaced with the 13C isotope. This compound is essential as an internal standard for the precise and accurate quantification of metalaxyl residues in complex matrices using advanced analytical techniques like LC-MS/MS and GC-MS. It is a critical tool for researchers and quality control laboratories in agricultural chemistry, environmental monitoring, and food safety testing, enabling compliance with stringent regulatory limits for pesticide residues.

Application

• Internal Standard for Mass Spectrometry: Primary use as a quantitative internal standard in LC-MS/MS and GC-MS analysis for metalaxyl.
• Pesticide Residue Analysis: Enables accurate measurement of metalaxyl residues in food crops, soil, and water samples to ensure compliance with global MRLs (Maximum Residue Limits).
• Environmental Fate Studies: Used in tracer studies to investigate the degradation, metabolism, and translocation of metalaxyl in the environment.
• Method Development & Validation: Critical for developing, validating, and accrediting analytical methods according to ISO 17025, FDA, and EU guidelines.
• Clinical & Forensic Toxicology: Potential application in specialized toxicology testing for exposure assessment.
• Pharmaceutical Impurity Profiling: Can be used in trace analysis for related substances in pharmaceutical manufacturing where metalaxyl or its analogs are process impurities.

Basic Information

Product Name	Metalaxyl-(Phenyl-13C6)
CAS No.	1356199-69-3
Molecular Formula	C1713C6H21NO4
Molecular Weight	~335.36 g/mol (for 13C6 labeled form)
Synonyms	Metalaxyl-13C6 (Phenyl); Metalaxyl (Phenyl-ring-13C6); N-(2,6-Dimethylphenyl)-N-(methoxyacetyl)-DL-alanine methyl ester (phenyl-13C6); Methyl N-(methoxyacetyl)-N-(2,6-xylyl)-DL-alaninate (phenyl-13C6); 13C6-Metalaxyl; Isotopically Labeled Metalaxyl; [Phenyl-13C6]-Metalaxyl; Internal Standard for Metalaxyl
EINECS	Not listed for this labeled analog. The unlabeled compound (Metalaxyl) is 244-557-0.

Quality Control

Every batch of Metalaxyl-(Phenyl-13C6) is produced and analyzed under strict quality protocols to ensure the highest isotopic and chemical purity for trace analysis. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are provided with each shipment, detailing key parameters such as isotopic purity (Atom % 13C), chemical purity (by HPLC), and identity confirmation (by NMR and MS).

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label or COA. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Chemical Purity)
Isotopic Purity (Atom % 13C)	≥ 99% on the labeled phenyl ring
Water Content (KF)	≤ 0.5% w/w
Residue on Ignition	≤ 0.1%

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