Description

7-Dehydrocholesterol Acetate is a key sterol derivative and a vital intermediate in the synthesis of Vitamin D3 and related compounds. Its value lies in its role as a precise chemical building block, enabling the production of high-purity, biologically active molecules for critical applications. This product is essential for manufacturers and research institutions in the pharmaceutical, nutraceutical, and fine chemical sectors requiring a reliable and consistent raw material.

Application

• Pharmaceutical Intermediate: A critical precursor in the commercial and research-scale synthesis of Vitamin D3 (Cholecalciferol) and its analogs.
• Nutraceutical Production: Used in the manufacturing of high-grade Vitamin D3 supplements and fortified food ingredients.
• Biochemical Research: Serves as a standard or starting material in studies of sterol metabolism, photochemistry, and vitamin D biosynthesis pathways.
• Fine Chemical Synthesis: Employed as a specialized building block for creating novel steroidal compounds with potential therapeutic activity.
• Reference Standard: Utilized in analytical laboratories for method development, calibration, and quality control testing of related substances.

Basic Information

Product Name	7-Dehydrocholesterol Acetate
CAS No.	1059-86-5
Molecular Formula	C₂₉H₄₆O₂
Molecular Weight	426.68 g/mol
Synonyms	Provitamin D3 Acetate; 5,7-Cholestadien-3β-ol Acetate; (3β)-Cholesta-5,7-dien-3-ol Acetate; 7-DHC Acetate; Dehydrocholesterol Acetate; Cholesta-5,7-dien-3β-ol 3-Acetate; 3β-Acetoxycholesta-5,7-diene
EINECS	213-894-5

Quality Control

Our 7-Dehydrocholesterol Acetate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR), to ensure it meets exacting standards suitable for pharmaceutical and research applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	128°C - 132°C
Loss on Drying	≤ 0.5%
Specific Rotation	-105° to -115° (c=1 in CHCl₃)

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