Description

Hexadecanoic--D5 Acid CAS NO 1219802-61-5 is a deuterated analog of palmitic acid, a common saturated fatty acid, where five hydrogen atoms are replaced with deuterium. This isotopic labeling is critical for creating internal standards used in mass spectrometry, ensuring unparalleled accuracy and reliability in quantitative analytical workflows. This high-purity compound is essential for researchers and quality control laboratories in the pharmaceutical, metabolomics, and environmental testing industries who require precise measurement of fatty acid metabolites and biomarkers.

Application

• Internal Standard for Mass Spectrometry (LC-MS/MS, GC-MS): Serves as a critical quantitative reference for the accurate measurement of endogenous palmitic acid and related lipid metabolites in complex biological matrices.
• Pharmaceutical Research & Drug Metabolism Studies: Used in pharmacokinetic (PK) and pharmacodynamic (PD) studies to trace and quantify drug metabolites and their fatty acid conjugates with high specificity.
• Clinical Diagnostics & Biomarker Discovery: Enables precise profiling of fatty acids in plasma, serum, or tissue samples for research into metabolic disorders, cardiovascular disease, and diabetes.
• Nutritional Science & Metabolomics: Facilitates the accurate analysis of dietary fatty acid absorption, distribution, and metabolism in nutritional intervention studies.
• Environmental Analysis: Can be employed as a tracer in studies investigating the environmental fate and biodegradation of fatty acids and lipids.
• Stable Isotope Labeling in Chemical Synthesis: Used as a building block in the synthesis of more complex deuterated molecules for mechanistic studies and spectroscopic analysis.

Basic Information

Product Name	Hexadecanoic--D5 Acid
CAS No.	1219802-61-5
Molecular Formula	C16H27D5O2
Molecular Weight	261.45 g/mol (approx.)
Synonyms	Palmitic Acid-d5; Hexadecanoic Acid-d5; Deuterated Palmitic Acid; [D5]-Palmitic Acid; Pentadeutero-palmitic Acid; n-Hexadecanoic-d5 Acid; C16:0-d5; 1,2,3,4,5-D5-Palmitic Acid
EINECS	Contact for details

Quality Control

Our Hexadecanoic--D5 Acid is manufactured under strict quality systems to ensure the high isotopic and chemical purity required for analytical applications. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing parameters such as isotopic purity (atom % D), chemical purity (by HPLC or GC), and identity confirmation. We adhere to relevant industry standards for fine chemicals and stable isotope-labeled compounds. Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. This product is hygroscopic (moisture-sensitive). For long-term storage under inert atmosphere, consider sealing under argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR / NMR)	Conforms to structure
Assay (HPLC / GC)	≥ 98.0% (Chemical Purity)
Isotopic Purity (Atom % D)	≥ 98.0% (by MS)
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.