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Section: 9 Organic dyes and pigments (OD) Page: 481

 Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
ROD00481
Data type:
Raman
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Red Pigment 146 (PR146), Naphthol AS, Azo, CI12485
Trade name(s):
1146 Naphthol Red
CAS name:
2-Naphthalenecarboxamide, N-(4-chloro-2,5-dimethoxyphenyl)-3-hydroxy-4-[2-[2-methoxy-5-[(phenylamino)carbonyl]phenyl]diazenyl]-
Sample source 1:
Lansco
Sample identifier 1:
1146 Naphthol Red
Sample source 2:
Tate Gallery, Tate Colorant Collection, Tom Learner
Source location 2:
Millbank, London, SW1P4RG, London, UK
Sample identifier 2:
PR146, 1146 Naphthol Red
Sample source 3:
National Gallery of Art
Source location 3:
DCL-SR, Washington DC, 20565, US
Color:
Opaque, red
Age:
2003, acquired
MW (relative):
611.04, calculated
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
633
Mode:
Scat
Originating institution name:
United States Naval Academy Chemistry
Originating institution acronym:
USNA
Molecular formula:
C33 H27 Cl N4 O6
CAS registry no:
5280-68-2
Other analytical methods:
LD-MS (laser desorption mass spectrometry), FTIR (Fourier transform infrared spectroscopy)