521-58-4

Basic information

• Product Name: xanthommatin
• Synonyms: xanthommatin;α-Amino-3-carboxy-1-hydroxy-γ,5-dioxo-5H-pyrido[3,2-a]phenoxazine-11-butanoic acid
• CAS NO: 521-58-4
• Molecular Formula: C20H13N3O8
• Molecular Weight: 423.33252
• Mol File: 521-58-4.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 749.3°Cat760mmHg
• Flash Point: 406.9°C
• Appearance: /
• Density: 1.8g/cm³
• Vapor Pressure: 1.39E-23mmHg at 25°C
• Refractive Index: 1.799
• CAS DataBase Reference: xanthommatin(CAS DataBase Reference)
• NIST Chemistry Reference: xanthommatin(521-58-4)
• EPA Substance Registry System: xanthommatin(521-58-4)

Safety Data

• Hazardous Substances Data: 521-58-4(Hazardous Substances Data)

Usage

Definition

ChEBI: An ommochrome that consists of a pyrido[3,2-a]phenoxazine ring system bearing hydroxy, carboxy, oxo and 3-amino-3-carboxypropanoyl substituents at positions 1, 3, 5 and 11 respectively. The parent of the class of xanthommatins.

InChI:InChI=1/C20H13N3O8/c21-8(19(27)28)4-10(24)7-2-1-3-13-16(7)23-18-14(31-13)6-12(26)17-15(18)11(25)5-9(22-17)20(29)30/h1-3,5-6,8H,4,21H2,(H,22,25)(H,27,28)(H,29,30)

Upstream product

• 98948-82-4 4,6-dihydroxy-5,8-dioxo-5,8-dihydro-quinoline-2-carboxylic acid 
• 484-78-6 3-hydroxykynurenine 
• 7732-18-5 water 
• 26510-91-8 2,4,5-trimethoxyaniline 
• 6046-71-5 4-hydroxy-5,6,8-trimethoxy-quinoline-2-carboxylic acid ethyl ester 

Relevant articles and documents

COSMETIC AND DERMATOLOGICAL COMPOSITIONS

Cosmetic and dermatological compositions, including color changing compositions, are provided which typically include a plurality of synthetic particles having a size in the micrometer or nanometer range. Each synthetic particle typically includes one or more aggregates of a pigment selected from phenoxazone, phenoxazine, and a derivate or precursor thereof, and a stabilizing material which has a refractive index larger than 1.45; the aggregates having a size larger than about 100 nm and the composition being biodegradable and biocompatible.

Oxidation of 3-Hydroxykynurenine. An EPR investigation

A weak alkaline solution of 3-hydroxykynurenine was oxidized using potassium ferricyanide.A stable epr signal was recorded, probably arising from a phenoxazine intermediate.A plausible radical mechanism for this reaction is presented.