Description

9-cis-Retinyl Stearate-D5 is a stable, deuterium-labeled isotopologue of the vitamin A derivative, 9-cis-retinyl stearate. This compound is of significant value as a high-purity internal standard for the precise quantification of retinyl esters in complex biological matrices using advanced analytical techniques like LC-MS/MS. It is primarily needed by research institutions, pharmaceutical R&D laboratories, and CROs (Contract Research Organizations) engaged in lipidomics, metabolic studies, and the development of vitamin A-based therapeutics.

Application

• Internal Standard for LC-MS/MS analysis of retinyl esters in plasma, serum, and tissue samples.
• Quantitative biomarker research in studies of vitamin A metabolism, storage, and transport.
• Stable isotope dilution assays to ensure accuracy and reproducibility in nutritional and clinical research.
• Method development and validation in analytical laboratories for compliance with GLP standards.
• Metabolic tracer studies investigating the absorption and conversion pathways of vitamin A isomers.
• Reference material for the quality control of retinoid-based pharmaceutical formulations and nutraceuticals.

Basic Information

Product Name	9-cis-Retinyl Stearate-D5
CAS No.	1331643-11-8
Molecular Formula	C38H55D5O2
Molecular Weight	~ 563.93 g/mol
Synonyms	9-cis-Vitamin A Stearate-D5; (9Z)-Retinyl Octadecanoate-D5; 9Z-Retinyl Stearate-D5; Deuterated 9-cis-Retinyl Stearate; 9-cis-Retinyl Stearate (d5); Isotopically Labeled Retinyl Ester; 9-cis-Retinyl octadecanoate-d5; 9Z-Retinyl octadecanoate-d5
EINECS	Contact for details

Quality Control

Our 9-cis-Retinyl Stearate-D5 is manufactured under strict quality control protocols to ensure the highest isotopic and chemical purity required for analytical applications. Each batch is characterized by NMR and Mass Spectrometry to confirm deuteration level and structural identity, with purity verified by HPLC. A comprehensive Certificate of Analysis (COA) detailing isotopic purity, chemical purity, and solvent residues is provided with every shipment to support your research and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C or below under an inert atmosphere (argon or nitrogen) to prevent oxidation. Allow the sealed vial to equilibrate to room temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	Yellow to orange viscous oil or solid
Identification (NMR)	Conforms to structure
Identification (MS)	Conforms to structure
Isotopic Purity (d5)	≥ 98 atom % D
Chemical Purity (HPLC)	≥ 95%
Related Substances (HPLC)	Total impurities ≤ 5.0%

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