Product name:Orcein
CAS:1400-62-0
Molecular Formula:C28 H24 N2 O7
Formula Weight:500.51
Specification:1g
Description:
Orcein, also archil, orchil, lacmus, litmus, Citrus Red 2, and C.I. Natural Red 28, are names for dyes extracted from several species of lichen, also called orchella weeds, found in various parts of the world.
Orcein is a reddish-brown dye, orchil is a purple-blue dye. Orcein is also used as a stain in microscopy to visualize elastic fibers,Hepatitis B surface antigens and copper associated proteins. It is a mixture of phenoxazone derivates - hydroxyorceins, aminoorceins, and aminoorceinimines.