Description

Docosanoic-D43 Acid CAS NO 29823-26-5 is a high-purity, deuterium-labeled isotopologue of behenic acid, where 43 hydrogen atoms are replaced with deuterium. This stable isotope labeling is critical for advanced analytical applications requiring precise internal standards and metabolic pathway tracing. It is an essential material for researchers and manufacturers in the pharmaceutical, biotechnology, and analytical chemistry sectors who require uncompromising isotopic purity and chemical stability for mass spectrometry and NMR studies.

Application

• Internal Standard for Mass Spectrometry (MS): Used as a quantitative internal standard in LC-MS and GC-MS analysis for accurate measurement of endogenous behenic acid and related long-chain fatty acids in complex biological matrices.
• Metabolic Research & Tracer Studies: Enables the detailed investigation of lipid metabolism, absorption, and distribution in pharmacokinetic and nutritional studies due to its stable isotopic signature.
• NMR Spectroscopy: Serves as a valuable probe in nuclear magnetic resonance spectroscopy for structural elucidation and dynamic studies of lipid assemblies and membrane systems.
• Pharmaceutical Development: Employed in the research and quality control of lipid-based drug formulations and prodrugs to monitor stability and metabolic fate.
• Biomarker Discovery & Clinical Diagnostics: Facilitates the precise quantification of fatty acid biomarkers in plasma, serum, and tissue samples for disease research.
• Chemical Synthesis: Acts as a labeled starting material or intermediate for the synthesis of more complex deuterated compounds for research purposes.

Basic Information

Product Name	Docosanoic-D43 Acid
CAS No.	29823-26-5
Molecular Formula	C22D43HO2 [or C22H1D43O2]
Molecular Weight	~367.7 g/mol
Synonyms	Behenic Acid-d43; Docosanoic-d43 Acid; Deuterated Behenic Acid; n-Docosanoic-d43 Acid; 22:0-d43 Fatty Acid; C22:0-d43; D43-Behenic Acid; [D43]-Behenic Acid
EINECS	Contact for details

Quality Control

Every batch of Docosanoic-D43 Acid is produced and analyzed under strict quality protocols to ensure exceptional isotopic and chemical purity suitable for sensitive analytical applications. Our quality commitment includes comprehensive testing via NMR, MS, and HPLC to verify isotopic enrichment, chemical identity, and purity. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting batch-specific results.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to minimize exposure to atmospheric moisture. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (chemical purity)
Isotopic Enrichment	≥ 98 atom % D
Deuterium Content	≥ 43 atoms D per molecule
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.