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Interactive IRUG Spectrum

Section: 9 Organic dyes and pigments (OD) Page: 25

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


Details

IRUG filename:
IOD00025
Data type:
Infrared
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Cochineal Red A, Acid Red 18, Monoazo, CI16255
Trade name(s):
Cochineal Red A
CAS name:
1,​3-​Naphthalenedisulfoni​c acid, 7-​hydroxy-​8-​[2-​(4-​sulfo-​1-​naphthalenyl)​diazenyl]​-​, sodium salt (1:3)
Sample source 1:
Helmut Schweppe Collection of Early Synthetic Dyes
Source location 1:
BASF, Ludwigshafen, Germany
Sample identifier 1:
Cochineal red A
Sample source 2:
Getty Conservation Institute
Source location 2:
The Getty Center, 1200 Getty Center Drive, Los Angeles, CA, 90049, US
Sample identifier 2:
Cochineal Red A
Color:
Red
Age:
1986, acquired
Application:
DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy)
Mode:
Refl
Originating institution name:
Getty Conservation Institute
Originating institution acronym:
GCI
CAS registry no:
2611-82-7