Format

Send to:

Choose Destination
See comment in PubMed Commons below
Biotech Histochem. 2003 Dec;78(6):289-302.

Orcein and litmus.

Author information

  • 1Organic Chemistry Institute, University of Göttingen, Göttingen, Germany.

Abstract

Orcein was separated into 14 dyes by partition chromatography. Their constitutions were determined mainly by spectroscopy and led to formulae that are derived from 7-amino-2-phenoxazone, 7-hydroxy-2-phenoxazone, and 7-amino-2-phenoxazime, and that were confirmed by syntheses. The major constituent of litmus is assembled polymerically from 7-hydroxy-2-phenoxazone chromophores. The mechanism of formation is elucidated.

PMID:
15473576
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk