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Section: 9 Organic dyes and pigments (OD) Page: 593

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


Details

IRUG filename:
ROD00593
Data type:
Raman
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Red 48 (PR48), BONA, Na, Azo Lake (Salt Type), CI15865
Trade name(s):
Litholscharlach 5BM, Lithol Scarlet 5BM
CAS name:
2-​Naphthalenecarboxyli​c acid, 4-​[2-​(5-​chloro-​4-​methyl-​2-​sulfophenyl)​diazenyl]​-​3-​hydroxy-​, sodium salt (1:2)
Sample source 1:
BASF
Sample identifier 1:
Litholscharlach 5BM
Sample source 2:
Dresden University of Technology (TU), Historical Dye Collection
Source location 2:
Helmholtzstr. 10, Dresden, DE
Sample identifier 2:
Ref. 8415
Sample source 3:
Royal Institute for Cultural Heritage (KIK/IRPA)
Source location 3:
Jubelpark 1, 1000 Brussels, BE
Color:
Red
MW (relative):
464.79, 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:
C18 H11 Cl N2 O6 S * 2 Na
CAS registry no:
3564-21-4

Related Structure(s)

IRUG Structure Tracking #: 247
Common Name(s): Pigment Red 48 (PR48); BONA, Na; CI15865
CAS Name: 2-​Naphthalenecarboxyli​c acid, 4-​[2-​(5-​chloro-​4-​methyl-​2-​sulfophenyl)​diazenyl]​-​3-​hydroxy-​, sodium salt (1:2)
CAS Registry No: 3564-21-4
IRUG Material Class: Organic dyes and pigments (OD)
Molecular Formula: C18 H11 Cl N2 O6 S * 2Na
MW: 464.79