Interactive IRUG Spectrum

Section: 9

Organic dyes and pigments (OD)

Page: 529

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Details

IRUG filename: ROD00529	Data type: Raman	IRUG material class: Organic dyes and pigments (OD)
Sample type: Reference material	Common name(s): Pigment Red 221 (PR221), Disazo condensation, Azo, CI20065	Trade name(s): Cromophtal Red 2B
CAS name: Benzoic acid, 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthalenediyl)-2,1-diazenediyl]]bis[4-methyl-, 1,1'-bis(1-methylethyl) ester	Sample source 1: Ciba	Sample identifier 1: Cromophtal Red 2B
Sample source 2: Getty Conservation Institute	Source location 2: 1200 Getty Center Dr., Los Angeles, CA, US	Sample identifier 2: SP21061
Sample source 3: Royal Institute for Cultural Heritage (KIK/IRPA)	Source location 3: Jubelpark 1, 1000 Brussels, BE	Color: Red
MW (relative): 925.81, calculated	Application: Raman microscopy	Excitation source (nm): 785
Mode: Scat	Literature Reference: Fremout, W., & Saverwyns, S. (2012). Identification of synthetic organic pigments: the role of a comprehensive digital Raman spectral library. Journal of Raman Spectroscopy, 43(11), 1536–1544.	Originating institution name: Royal Institute for Cultural Heritage
Originating institution acronym: KIK/IRPA	Molecular formula: C50 H42 Cl2 N6 O8	CAS registry no: 61815-09-6

Related Structure(s)

IRUG Structure Tracking #: 307 Common Name(s): Pigment Red 221(PR221); Disazo condensation; CI20065 CAS Name: Benzoic acid, 3,3'-[(2,5-dichloro-1,4-phenylene)bis[iminocarbonyl(2-hydroxy-3,1-naphthalenediyl)-2,1-diazenediyl]]bis[4-methyl-, 1,1'-bis(1-methylethyl) ester CAS Registry No: 71566-54-6 IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C50 H42 Cl2 N6 O8 MW: 925.81