Description

Methyl Stearate-1-13C is a stable isotope-labeled analog of methyl stearate, where the carbon-13 isotope is specifically incorporated at the carbonyl carbon position. This precise labeling makes it an indispensable internal standard and tracer in advanced analytical chemistry and metabolic research. It is primarily utilized by scientists and quality control professionals in the pharmaceutical, biotechnology, and chemical analysis industries for applications requiring high-precision quantification and pathway elucidation.

Application

• Quantitative Analysis (GC/MS, LC/MS): Serves as a critical internal standard for the accurate quantification of fatty acid methyl esters (FAMEs) and related compounds in complex matrices.
• Metabolic Flux Analysis: Used as a 13C-labeled tracer to study lipid metabolism, biosynthesis pathways, and energy utilization in biological systems.
• Stable Isotope Dilution Assays (SIDA): Enables highly precise and accurate measurement of stearic acid and its derivatives in food, clinical, and environmental samples.
• Pharmaceutical Research: Employed in drug metabolism and pharmacokinetics (DMPK) studies to track the fate of lipid-based drug molecules.
• Biomarker Discovery & Validation: Acts as a reference compound in proteomic and lipidomic research for identifying and validating disease biomarkers.
• Quality Control & Method Development: Essential for developing and validating robust analytical methods in compliance with GLP and GMP guidelines.

Basic Information

Product Name	Methyl Stearate-1-13C
CAS No.	167388-13-8
Molecular Formula	C18H3613COOCH3 or C18H36O2 (13C1)
Molecular Weight	~299.5 g/mol
Synonyms	Methyl octadecanoate-1-13C; Methyl 13C-stearate; Stearic acid-1-13C methyl ester; 13C1-Methyl stearate; Methyl ester of stearic-1-13C acid; FAME C18:0-1-13C; Octadecanoic-1-13C acid, methyl ester
EINECS	Contact for details

Quality Control

Every batch of Methyl Stearate-1-13C is produced and analyzed under strict quality management systems. We guarantee high chemical and isotopic purity through rigorous testing via NMR, GC-MS, and HPLC. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing the isotopic enrichment, chemical purity, and analytical results. Our quality commitment ensures reliability for your most sensitive research and compliance-driven applications.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, well-ventilated area. For long-term storage, consider keeping the container under an inert atmosphere to maintain optimal stability and isotopic integrity.

Specification

Item	Specification
Appearance	White to off-white solid or waxy solid
Identification (NMR, MS)	Conforms to structure
Isotopic Enrichment (13C)	≥ 99 atom % 13C
Chemical Purity (GC)	≥ 98.0%
Melting Point	37 - 40 °C

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