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Section: 9 Organic dyes and pigments (OD) Page: 187

 Copyright © 1993-2025 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
ROD00187
Data type:
Raman
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Red 23 (PR23), Naphthol AS, Azo, CI12355
Trade name(s):
1523 Naphtol Red 23
CAS name:
2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(2-methoxy-5-nitrophenyl)diazenyl]-N-(3-, nitrophenyl)-
Sample source 1:
Lansco
Sample identifier 1:
1523 Naphtol Red 23
Sample source 2:
Getty Conservation Institute
Source location 2:
1200 Getty Center Dr., Los Angeles, CA, US
Sample identifier 2:
SP20978
Sample source 3:
Royal Institute for Cultural Heritage (KIK/IRPA)
Source location 3:
Jubelpark 1, 1000 Brussels, BE
Color:
Red
Application:
Raman microscopy
Excitation source (nm):
785
Mode:
Scat
Literature Reference:
Fremout, W., Saverwyns, S. "Identification of synthetic, organic pigments: the role of a comprehensive digital Raman spectral library" J. Raman Spectrosc. 43 (2012): 1536-1544.
Originating institution name:
Royal Institute for Cultural Heritage
Originating institution acronym:
KIK/IRPA
Molecular formula:
C24 H17 N5 O7
CAS registry no:
6471-49-4