Phenoxazine

Structural formula
General
Surname	Phenoxazine
other names	10 H -phenoxazine Dibenzo [1,4] oxazine
Molecular formula	C 12 H 9 NO
Brief description	colorless leaflets
External identifiers / databases
CAS number 135-67-1 EC number 205-210-8 ECHA InfoCard 100.004.737 PubChem 67278 Wikidata Q731009
properties
Molar mass	183.21 g mol −1
Physical state	firmly
Melting point	156 ° C
solubility	soluble in alcohol, ether, chloroform slightly soluble in petroleum ether insoluble in water
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Phenoxazine is a heterocyclic carbon compound. The skeleton of phenoxazine, an oxazine to which two benzene rings are condensed, occurs as the basic body of some naturally occurring substances, e.g. As the actinomycin - antibiotics and indamine on. So litmus and orcein are phenoxazine dyes.

use

Phenoxazine derivatives (such as Oxonine and Capri Blue GN) were previously used in silk dyeing, but due to their lack of lightfastness they disappeared from the market over time. Since their lightfastness is significantly better on acrylic fibers, these dyes experienced a renaissance.

Individual evidence

1. ↑ ^{a b c} Entry on phenoxazine. In: Römpp Online . Georg Thieme Verlag, accessed on November 10, 2014.
2. ^ ^{A b} The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals , 14th Edition (Merck & Co., Inc.), Whitehouse Station, NJ, USA, 2006; Pp. 1252-1253, ISBN 978-0-911910-00-1 .
3. ↑ Data phenoxazines at Sigma-Aldrich , accessed on 29 May 2011 ( PDF ).
4. ↑ Ingo Klöckl: chemistry of dyes and pigments - synthetic organic coloring matter , accessed March 31, 2013.
5. ↑ Andreas Martens, TU Braunschweig: Indicators ( Memento of the original from April 22, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 1.4 MB), accessed March 31, 2013.