| Section: 9 | Organic dyes and pigments (OD) | Page: 565 | 
IRUG filename: ROD00565  | Data type: Raman  | IRUG material class: Organic dyes and pigments (OD)  | 
Sample type: Reference material  | Common name(s): Pigment Red 88 (PR88), Thioindigo, Polycyclic, CI73312  | Trade name(s): Thioindigoid red  | 
CAS name: Benzo[b]thiophen-3(2H)-one, 4,7-dichloro-2-(4,7-dichloro-3-oxobenzo[b]thien-2(3H)-ylidene)-  | Sample source 1: Kremer Pigmente  | Source location 1: Hauptstr. 41-47, Aichstetten, DE  | 
Sample identifier 1: Thioindigoid Red  | Sample source 2: Getty Conservation Institute  | Source location 2: 1200 Getty Center Dr., Los Angeles, CA, US  | 
Sample identifier 2: SP21018  | Sample source 3: Royal Institute for Cultural Heritage (KIK/IRPA)  | Source location 3: Jubelpark 1, 1000 Brussels, BE  | 
Color: Red  | MW (relative): 434.14, 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: C16 H4 Cl4 O2 S2  | 
CAS registry no: 14295-43-3  | 
IRUG Structure Tracking #: 200 Common Name(s): Pigment Red 88 (PR88); CI73312 CAS Name: Benzo[b]thiophen-3(2H)-one, 4,7-dichloro-2-(4,7-dichloro-3-oxobenzo[b]thien-2(3H)-ylidene)- CAS Registry No: 14295-43-3 IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C16 H4 Cl4 O2 S2 MW: 431.14  |