Technical Data
20a-Hydroxycholesterol (5-Cholestene-3B,20a-diol)
Biochemicals Storage: -20CShipping: RT
An important intermediate in corticosteroid biogenesis.


Melting Point:

Chloroform, Dichloromethane

Method for Determining Identity:
Proton NMR Spectroscopic and Mass Spectroscopic Analysis.

TLC Conditions:
SiO2; Hexane: Ethyl Acetate; 2:1; Visualized with AMCS and KMnO4; Single Spot; Rf=0.55. Contains 1.5% Methanol.

Optical Rotation:
-54.4 (c=0.2, CHCI3)

Storage and Stability:
May be stored at RT for short-term only. Long-term storage is recommended at -20C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

Molecular Formula:

Molecular Weight:
Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards:All products should be handled by qualified personnel only, trained in laboratory procedures.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.