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Section: 9 Organic dyes and pigments (OD) Page: 175

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Details

IRUG filename:
ROD00175
Data type:
Raman
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Pigment Red 49 (PR49), β-Naphthol, Na, Azo Lake (Salt Type), CI15630
CAS name:
1-Naphthalenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)
Sample source 1:
Cyanamid
Sample source 2:
Tate Gallery
Source location 2:
Millbank, London, SW1P 4RG, UK
Sample source 3:
National Gallery of Art
Source location 3:
DCL-SR, Washington DC 20565
Color:
Opaque, red
Age:
2003, acquired
MW (relative):
368.32, calculated
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
633
Mode:
Scat
Originating institution name:
United States Naval Academy
Originating institution acronym:
USNA
Molecular formula:
C20 H13 N2 O4 S * Na
CAS registry no:
1248-18-6
Other analytical methods:
FTIR (Fourier transform infrared spectroscopy)