Description

7-Dehydrocholesterol (CAS NO 434-16-2) is a critical biochemical precursor in the biosynthesis of vitamin D3, making it an essential intermediate for pharmaceutical and nutraceutical manufacturing. Its high purity and stability are paramount for ensuring the efficacy and safety of the final vitamin D products. This compound is primarily required by manufacturers in the pharmaceutical, dietary supplement, and advanced research sectors.

Application

• Pharmaceutical Synthesis: Key starting material and intermediate in the industrial-scale production of Vitamin D3 (Cholecalciferol) and its analogs.
• Nutraceutical Manufacturing: Used in the formulation of high-potency vitamin D supplements and fortified foods.
• Biochemical Research: Serves as a vital standard and reagent in studies of sterol metabolism, vitamin D biosynthesis pathways, and related enzymatic processes.
• Reference Standard: Employed as a certified reference material (CRM) in analytical laboratories for quality control and method validation in pharmaceutical analysis.
• Cosmeceutical Development: Investigated for use in specialized skincare products targeting skin health and regeneration.

Basic Information

Product Name	7-Dehydrocholesterol
CAS No.	434-16-2
Molecular Formula	C₂₇H₄₄O
Molecular Weight	384.64 g/mol
Synonyms	Provitamin D3; 5,7-Cholestadien-3β-ol; (3β)-Cholesta-5,7-dien-3-ol; 7-DHC; Dehydrocholesterol; 5,7-Cholestadien-3-ol, (3β)-; NSC 6175
EINECS	207-100-5

Quality Control

Our 7-Dehydrocholesterol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets stringent specifications for pharmaceutical and research applications. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as specified on the label. This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent oxidation and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Heavy Metals	≤ 20 ppm

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