Description

Cholesterol CAS NO 57-88-5 is a fundamental sterol and essential lipid molecule, serving as a critical structural component of animal cell membranes and a vital precursor for the biosynthesis of steroid hormones, bile acids, and vitamin D. Its high purity and consistent quality are paramount for ensuring reliable results in research and the efficacy of downstream pharmaceutical formulations. This compound is indispensable for manufacturers and researchers in the pharmaceutical, nutraceutical, cosmetic, and life science industries.

Application

• Pharmaceutical Intermediate: Key starting material for the synthesis of steroid hormones (e.g., progesterone, testosterone) and vitamin D analogs.
• Cell Culture & Biomedical Research: Essential component in lipid rafts studies, membrane fluidity research, and as a supplement in serum-free cell culture media.
• Liposome & Drug Delivery Systems: Used to modulate the stability, rigidity, and permeability of liposomal bilayers in targeted drug delivery.
• Cosmetic & Personal Care: Employed in formulations for its emollient and skin-barrier repair properties.
• Diagnostic Reagents: A standard and calibrant in clinical diagnostic kits for cholesterol level testing in blood serum.
• Nutraceuticals: Sourced for high-purity dietary supplements, often derived from lanolin.

Basic Information

Product Name	Cholesterol
CAS No.	57-88-5
Molecular Formula	C27H46O
Molecular Weight	386.65 g/mol
Synonyms	(3β)-Cholest-5-en-3-ol; Cholesterin; Cholesteryl Alcohol; 5-Cholesten-3β-ol; Cordulan; Dythol; Hydrocerin; Lanolin Alcohols; Provitamin D; NSC 8798
EINECS	200-353-2

Quality Control

Our Cholesterol is manufactured under strict quality management systems. We offer grades compliant with major pharmacopoeial standards, including USP-NF and EP. Every batch undergoes comprehensive analytical testing via HPLC, GC, and IR spectroscopy to ensure identity, purity, and conformance to specifications. A detailed Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, open flames, and oxidizing agents.

Specification

Item	Specification
Appearance	White or almost white crystalline powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0% - 102.0%
Melting Point	147°C - 150°C
Specific Rotation	-34° to -38° (c=2, in dioxane)
Loss on Drying	≤ 0.3%
Residue on Ignition	≤ 0.1%

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