Description

Eicosanoic-17,17,18,18-D4 Acid CAS NO 1219803-69-6 is a high-purity, isotopically labeled derivative of arachidic acid, where four hydrogen atoms at the 17 and 18 positions are replaced by deuterium. This compound is a critical tool for analytical and research scientists requiring precise internal standards for mass spectrometry and metabolic studies. It is primarily utilized in pharmaceutical research, environmental analysis, and advanced biochemical applications where accurate quantification and tracer studies are paramount.

Application

• Internal Standard for Mass Spectrometry (MS): Serves as a stable, non-interfering reference compound for the accurate quantification of arachidic acid and related long-chain fatty acids in complex biological matrices via GC-MS or LC-MS.
• Metabolic Pathway Tracing: Used in deuterium-labeling studies to investigate lipid metabolism, absorption, and distribution in pharmacokinetic and nutritional research.
• Pharmaceutical Impurity Profiling: Enables the detection and measurement of trace fatty acid impurities in drug substances and excipients with high specificity.
• Environmental Analysis: Acts as a recovery standard or surrogate in the analysis of fatty acids and lipids in environmental samples like soils and water.
• Biochemical Research: Facilitates studies on enzyme kinetics, lipidomics, and the role of specific fatty acids in cellular processes.
• Certified Reference Material (CRM) Production: Used in the formulation of high-accuracy calibration standards and quality control materials for analytical laboratories.

Basic Information

Product Name	Eicosanoic-17,17,18,18-D4 Acid
CAS No.	1219803-69-6
Molecular Formula	C20H36D4O2
Molecular Weight	316.55 g/mol (for D4 isotopologue)
Synonyms	Arachidic-d4 Acid; 17,17,18,18-D4-Eicosanoic Acid; n-Eicosanoic-d4 Acid; Deuterated Arachidic Acid; Isotopic Arachidic Acid; 17,17,18,18-Tetradeutero-eicosanoic acid; Icosanoic-d4 Acid
EINECS	Contact for details

Quality Control

Every batch of Eicosanoic-17,17,18,18-D4 Acid is manufactured and tested under strict quality management systems to ensure exceptional isotopic and chemical purity, critical for its role as an analytical standard. Our products undergo rigorous quality testing, including NMR and MS analysis, to confirm isotopic enrichment and chemical identity. Certificates of Analysis (COA) detailing batch-specific purity, isotopic enrichment, and analytical results are available upon request to support your compliance and research documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, well-ventilated area. This material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Enrichment (MS)	≥ 98 atom % D
Chemical Purity (GC)	≥ 99.0%
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.