Description

Dl-Selenomethionine-Methyl-13C1 CAS NO 286460-69-3 is a stable isotope-labeled analog of the essential amino acid methionine, where a carbon-13 atom is incorporated at the methyl position. This compound is critical for advanced research and development, providing a precise internal standard for quantitative mass spectrometry and metabolic pathway tracing. It is primarily required by analytical laboratories, pharmaceutical R&D departments, and academic institutions engaged in stable isotope labeling studies, metabolic research, and high-precision analytical method development.

Application

• Internal Standard for Quantitative Analysis: Used as a certified reference material in LC-MS and GC-MS for the accurate quantification of selenomethionine and related metabolites in complex biological matrices.
• Metabolic Pathway Tracing: Enables the study of selenium and methionine metabolism, protein synthesis, and antioxidant defense mechanisms in nutritional and pharmacological research.
• Pharmaceutical Development: Serves as a key labeled precursor in the research and development of novel selenium-containing therapeutic agents and radiopharmaceuticals.
• Nutritional Science Research: Applied in studies investigating selenium bioavailability, speciation, and its role in human health and disease prevention.
• Environmental and Food Safety Testing: Facilitates precise measurement of selenium species in environmental samples, dietary supplements, and fortified foods.

Basic Information

Product Name	Dl-Selenomethionine-Methyl-13C1
CAS No.	286460-69-3
Molecular Formula	C13CH3-Se-CH2-CH2-CH(NH2)-COOH
Molecular Weight	~198.1 g/mol (C13 labeled)
Synonyms	DL-Selenomethionine-(methyl-13C); Seleno-DL-methionine (methyl-13C); (RS)-2-Amino-4-((methyl-13C)selanyl)butanoic acid; 13C1-Selenomethionine; Selenium-13C Methionine; Stable Isotope Labeled Selenomethionine; CAS 286460-69-3
EINECS	Contact for details

Quality Control

Our Dl-Selenomethionine-Methyl-13C1 is produced under strict quality management systems to ensure the highest isotopic and chemical purity for research applications. Each batch is characterized using advanced analytical techniques including NMR, HPLC, and mass spectrometry to confirm identity, isotopic enrichment, and purity. Certificates of Analysis (COA) are provided, detailing batch-specific results for all critical parameters to support your regulatory and research documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C under an inert atmosphere (e.g., argon or nitrogen) to minimize oxidation. The product is light-sensitive and easily oxidized; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain stability and isotopic integrity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Enrichment	≥ 99 atom % 13C
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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