Orcein
[awr-see-in] /ˈɔr si ɪn/
noun, Chemistry.
1.
a red dye, the principal coloring matter of cudbear and orchil, obtained by oxidizing an ammoniacal solution of orcinol.
/ˈɔːsɪɪn/
noun
1.
a brown crystalline material formed by the action of ammonia on orcinol and present in orchil: used as a dye, biological stain, and antiseptic. Formula: C28H24O7N2
orcein or·ce·in (ôr’sē-ĭn)
n.
A natural dye derived from orcinol and used in various histologic staining methods as a purple dye complex.
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