| Section: 9 | Organic dyes and pigments (OD) | Page: 437 | 
| IRUG filename: IOD00437 | Data type: Infrared | IRUG material class: Organic dyes and pigments (OD) | 
| Sample type: Reference material | Common name(s): Pigment Red 81 (PR81), Triarylcarbonium, Polycyclic, CI45160:1 | Trade name(s): 3288 Fast Pink 'Lake' G | 
| CAS name: Xanthylium, 9-[2-(ethoxycarbonyl)phenyl]-3,6-bis(ethylamino)-2,7-dimethyl-, molybdatetungstatephosphate | Sample source 1: HY Pigments | Sample identifier 1: 3288 Fast Pink 'Lake' G | 
| Sample source 2: Tate Gallery | Source location 2: Millbank, London, SW1P 4RG, UK | Color: Red | 
| Application: MFTIR (Fourier transform infrared microspectroscopy) | Mode: Tran | Originating institution name: Tate Gallery | 
| Originating institution acronym: TG | Molecular formula: C28 H31 N2 O3 * phosphotungstomolybdic acid salt | CAS registry no: 12224-98-5 |