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Interactive IRUG Spectrum

Section: 9 Organic dyes and pigments (OD) Page: 524

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


Details

IRUG filename:
ROD00524
Data type:
Raman
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Red 238 (PR238), Naphthol AS, Azo
Trade name(s):
Permanent Carmine F5B
CAS name:
2-Naphthalenecarboxamide, N-(5-chloro-2-methoxyphenyl)-3-hydroxy-4-[2-[2-methoxy-5-[(phenylamino)carbonyl]phenyl]diazenyl]-
Sample source 1:
Sanyo
Sample identifier 1:
Permanent Carmine F5B
Sample source 2:
Getty Conservation Institute
Source location 2:
1200 Getty Center Dr., Los Angeles, CA, US
Sample identifier 2:
SP21064
Sample source 3:
Royal Institute for Cultural Heritage (KIK/IRPA)
Source location 3:
Jubelpark 1, 1000 Brussels, BE
Color:
Red
MW (relative):
581.02, calculated
Application:
Raman microscopy
Excitation source (nm):
785
Mode:
Scat
Literature Reference:
Fremout, W., & Saverwyns, S. (2012). Identification of synthetic organic pigments: the role of a comprehensive digital Raman spectral library. Journal of Raman Spectroscopy, 43(11), 1536–1544.
Originating institution name:
Royal Institute for Cultural Heritage
Originating institution acronym:
KIK/IRPA
Molecular formula:
C32 H25 Cl N4 O5
CAS registry no:
140114-63-2