Interactive IRUG Spectrum

Section: 9

Organic dyes and pigments (OD)

Page: 98

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Details

IRUG filename: IOD00098	Data type: Infrared	IRUG material class: Organic dyes and pigments (OD)
Sample type: Reference material	Common name(s): Lac dye, Natural Red 25, CI75450	CAS name: C.I. Natural Red 25
Sample source 1: Helmut Schweppe Collection of Early Synthetic Dyes	Source location 1: BASF, Ludwigshafen, Germany	Sample identifier 1: Lac Dye
Sample source 2: Getty Conservation Institute	Source location 2: The Getty Center, 1200 Getty Center Drive, Los Angeles, CA, 90049	Sample identifier 2: Lac Dye
Color: Red, dark	Age: 1986, acquired	Application: DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy)
Mode: Refl	Cross reference to additional spectra: UV/VIS spectroscopy	Originating institution name: Getty Conservation Institute
Originating institution acronym: GCI	CAS registry no: 60687-93-6