Description

4-Methylpentanoic Acid-1-13C is a stable isotope-labeled analog of 4-methylpentanoic acid, where the carbon-13 isotope is incorporated at the carboxylic acid position. This precise labeling is critical for applications requiring high sensitivity and specificity in analytical detection and metabolic pathway elucidation. It is an essential building block for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced material sectors who require isotopically labeled compounds for tracer studies, quantitative analysis, and the development of novel diagnostic agents.

Application

• Internal Standard for Mass Spectrometry (MS): Serves as a quantitative reference standard in GC-MS and LC-MS analyses for accurate measurement of 4-methylpentanoic acid and related metabolites in complex biological or environmental matrices.
• Metabolic Pathway Tracing: Used in 13C-NMR spectroscopy and isotope-ratio mass spectrometry to track and elucidate biochemical pathways and metabolic fluxes in living systems.
• Pharmaceutical Research & Development: Employed in the synthesis of isotopically labeled drug candidates for pharmacokinetic (PK), pharmacodynamic (PD), and absorption, distribution, metabolism, and excretion (ADME) studies.
• Chemical Synthesis Intermediate: Acts as a labeled precursor for the synthesis of more complex 13C-labeled compounds, including fragrances, flavors, and specialty polymers.
• Environmental and Food Safety Testing: Enhances the accuracy of analytical methods for detecting and quantifying contaminants or natural compounds in food, water, and agricultural products.

Basic Information

Product Name	4-Methylpentanoic Acid-1-13C
CAS No.	286013-24-9
Molecular Formula	C5H1113COOH
Molecular Weight	117.15 g/mol (for 13C1 isotopologue)
Synonyms	Isohexanoic acid-1-13C; 4-Methylvaleric acid-1-13C; Isobutylacetic acid-1-13C; 3-Methylpentanoic acid-1-13C (common name); (1-13C)-4-Methylpentanoic acid; 13C1-4-Methylvaleric Acid; 4-Methylpentanoic-1-13C acid; Labeled Isohexanoic Acid
EINECS	Contact for details

Quality Control

Every batch of 4-Methylpentanoic Acid-1-13C is produced and analyzed under strict quality management protocols. We guarantee high chemical and isotopic purity, with comprehensive testing including NMR for isotopic enrichment and position verification, and chromatography for chemical purity. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming specifications for identity, purity (by GC or HPLC), isotopic enrichment, and relevant physical properties.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases, strong oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Confirms 13C position
Purity (GC or HPLC)	≥ 98% (chemical purity)
Isotopic Enrichment	≥ 99 atom % 13C
Water Content (KF)	≤ 0.5%

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