| Section: 9 | Organic dyes and pigments (OD) | Page: 133 | 
IRUG filename: ROD00133  | Data type: Raman  | IRUG material class: Organic dyes and pigments (OD)  | 
Sample type: Reference material  | Common name(s): Pigment Yellow 151 (PY151), Benzimidazolone, Azo, CI13980  | Trade name(s): Hostaperm Yellow H4G  | 
CAS name: Benzoic acid, 2-[2-[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl], diazenyl]-  | Sample source 1: Clariant  | Sample identifier 1: Hostaperm Yellow H4G  | 
Sample source 2: Tate Gallery  | Source location 2: Millbank, London, SW1P 4RG, UK  | Sample source 3: National Gallery of Art  | 
Source location 3: DCL-SR, Washington DC 20565  | Color: Opaque, yellow  | Age: 2003, acquired  | 
MW (relative): 381.34, calculated  | Application: Raman microscopy/microspectroscopy  | Excitation source (nm): 633   | 
Mode: Scat  | Originating institution name: United States Naval Academy  | Originating institution acronym: USNA  | 
Molecular formula:  C18 H15 N5 O5  | CAS registry no: 31837-42-0  | Other analytical methods: LD-MS (laser desorption mass spectrometry), FTIR (Fourier transform infrared spectroscopy)  | 
IRUG Structure Tracking #: 1109 Common Name(s): Pigment Yellow 151 (PY151); Benzimidazolone; CI13980 CAS Name: Benzoic acid, 2-[2-[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]diazenyl]- CAS Registry No: 31837-42-0 IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C18 H15 N5 O5 MW: 381.34  |