| Section: 9 | Organic dyes and pigments (OD) | Page: 304 | 
IRUG filename: ROD00304  | Data type: Raman  | IRUG material class: Organic dyes and pigments (OD)  | 
Sample type: Reference material  | Common name(s): Pigment Orange 72 (PO72), Benzimidazolone, Azo, CI211095  | Trade name(s): PV Fast Orange H4GL 01  | 
CAS name: For 78245-94-0: Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxo-; For  384329-80-0: C.I. Pigment Orange 72  | Sample source 1: Claraint  | Sample identifier 1: PV Fast Orange H4GL 01  | 
Sample source 2: Tate Gallery, Tom Learner  | Source location 2: Millbank, London, SW1P4RG, London, UK  | Sample identifier 2: PO72, PV Fast Orange H4GL 01  | 
Sample source 3: Winterthur Museum  | Source location 3: 5105 Kennett Pike, Winterthur, DE, 19735, US  | Color: Yellowish orange  | 
MW (relative): 740.14, calculated  | Application: Raman microscopy/microspectroscopy  | Excitation source (nm): 785  | 
Mode: Scat  | Originating institution name: Winterthur Museum, Garden & Library  | Originating institution acronym: WM  | 
Molecular formula: C34 H26 Cl2 N10 O6  | CAS registry no: 78245-94-0, 384329-80-0  |