Description

Octadecanoic-9,9,10,10-D4 Acid is a high-purity, isotopically labeled derivative of stearic acid, specifically deuterated at the 9 and 10 positions. This compound is essential for advanced analytical and research applications where precise molecular tracking and quantification are required. It is primarily utilized by researchers and scientists in the fields of metabolomics, lipidomics, pharmaceutical development, and analytical chemistry as a critical internal standard.

Application

• Internal Standard for Mass Spectrometry (MS): Serves as a critical quantitative reference in GC-MS and LC-MS analyses of fatty acids and complex lipid mixtures.
• Metabolic Pathway Tracing: Used in deuterium-labeling studies to investigate lipid metabolism, absorption, and biochemical pathways in biological systems.
• Pharmaceutical Research & Development: Employed in the development and validation of bioanalytical methods for drug candidates and their metabolites.
• Nutritional Science Studies: Facilitates precise measurement of stearic acid levels in food, supplements, and clinical samples.
• Chemical Synthesis Intermediate: Acts as a labeled building block for the synthesis of more complex deuterated compounds.
• Quality Control & Method Development: Provides a stable isotope standard for ensuring accuracy and precision in analytical laboratory workflows.

Basic Information

Product Name	Octadecanoic-9,9,10,10-D4 Acid
CAS No.	130048-57-6
Molecular Formula	C₁₈H₃₂D₄O₂
Molecular Weight	288.50 g/mol
Synonyms	Stearic-9,9,10,10-d4 Acid; Deuterated Stearic Acid; Octadecanoic-d4 Acid; 9,9,10,10-Tetradeuteriooctadecanoic Acid; Isotopic Stearic Acid; Fatty Acid-d4; C18:0-d4; Internal Standard Stearic Acid-d4
EINECS	Contact for details

Quality Control

Our Octadecanoic-9,9,10,10-D4 Acid is manufactured under strict quality systems to ensure exceptional isotopic and chemical purity, meeting the exacting requirements of research and analytical applications. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as isotopic enrichment (atom % D), chemical purity (by GC or HPLC), and identity confirmation. We are committed to providing materials that ensure reproducible and reliable results in sensitive analytical workflows.

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 storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 98.0%
Isotopic Enrichment	≥ 98 atom % D
Chemical Purity (Assay)	≥ 97.0%
Melting Point	67 - 71 °C

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