| Section: 9 | Organic dyes and pigments (OD) | Page: 324 | 
IRUG filename: IOD00324  | Data type: Infrared  | IRUG material class: Organic dyes and pigments (OD)  | 
Sample type: Reference material  | Common name(s): Pigment Red 49 (PR49), β-Naphthol, Na, Azo Lake (Salt Type), CI15630  | Trade name(s): Sodium Lithol Red  | 
CAS name: 1-Naphthalenesulfonic acid, 2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)  | Sample source 1: Cyanamid  | Sample identifier 1: Sodium Lithol Red  | 
Sample source 2: Carnegie Mellon Research Institute (CMRI), Carnegie Mellon University  | Source location 2: Pittsburgh, PA 15213 USA  | Sample identifier 2: CI15630  | 
Sample source 3: Tate Gallery  | Source location 3: 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: C20 H14 N2 O4 S * Na  | CAS registry no: 1248-18-6  |