Interactive IRUG Spectrum

Section: 9

Organic dyes and pigments (OD)

Page: 643

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Details

IRUG filename: IOD00643	Data type: Infrared	IRUG material class: Organic dyes and pigments (OD)
Sample type: Reference material	Common name(s): Indigotin, Acid Blue 74, Indigoid, CI73015	Trade name(s): Indigotine I
Chemical/botanical name(s): 5,5′-Indigodisulfonic acid disodium salt	CAS name: 1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, sodium salt (1:2)	Sample source 1: IG Farb. Ind. (IGF)
Source location 1: Frankfurt, Germany	Sample identifier 1: Indigotine I, Indigotin I	Sample source 2: Technological Collection of the Institute of the Science & Technology in Art (ISTA Collection)
Source location 2: Academy of Fine Arts, Schillerplatz 3, A-1010, Vienna, AT	Sample identifier 2: Inv. No. 693, Indigotine I, Indigoider Farbstoff	Color: Greenish blue
Application: MFTIR (Fourier transform infrared microspectroscopy)	Mode: Tran	Originating institution name: Academy of Fine Arts, Vienna
Originating institution acronym: AFAV	Molecular formula: C16 H8 N2 O8 S2 * 2 Na	CAS registry no: 860-22-0
Other analytical methods: XRF (x-ray fluorescence)

Related Structure(s)

IRUG Structure Tracking #: 1157 Common Name(s): Acid Blue 74; Indigoid; CI73015 CAS Name: 1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, sodium salt (1:2) CAS Registry No: 860-22-0 IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C16 H8 N2 O8 S2 * 2 Na MW: 466.35