Description

22-Dehydrodesmosterol is a key sterol intermediate and a biosynthetic precursor in the synthesis of vitamin D and other important steroid compounds. Its high purity and defined structure make it an essential reference standard and building block for research and development in the life sciences. This compound is primarily utilized by pharmaceutical R&D laboratories, academic research institutions, and manufacturers of fine chemicals and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Research & Development: Serves as a critical intermediate in the synthesis of vitamin D analogs and other therapeutic steroid molecules.
• Reference Standard: Used as a high-purity analytical standard for method development, validation, and quality control in chromatographic analysis (HPLC, GC).
• Biochemical Studies: Employed in metabolic pathway research to study cholesterol biosynthesis and sterol metabolism.
• Fine Chemical Synthesis: Acts as a specialized starting material or intermediate for the production of complex steroidal compounds.
• Academic Research: Utilized in university and institutional labs for studies in organic chemistry, biochemistry, and medicinal chemistry.

Basic Information

Product Name	22-Dehydrodesmosterol
CAS No.	23656-66-8
Molecular Formula	C27H44O
Molecular Weight	384.64 g/mol
Synonyms	22-Dehydrodesmosterol; (3β)-Cholesta-5,22-dien-3-ol; 22,23-Didehydrocholesterol; Desmosterol B; 5,22-Cholestadien-3β-ol; δ5,22-Cholestadien-3β-ol
EINECS	Contact for details

Quality Control

Our 22-Dehydrodesmosterol is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the stringent requirements for research and synthesis. Certificates of Analysis (COA) with detailed chromatograms and spectral data are provided to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label or COA. This product is hygroscopic (moisture-sensitive) and light-sensitive; ensure containers are sealed under inert atmosphere after opening to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%

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