| Section: 9 | Organic dyes and pigments (OD) | Page: 637 | 
IRUG filename: ROD00637  | Data type: Raman  | IRUG material class: Organic dyes and pigments (OD)  | 
Sample type: Reference material  | Common name(s): Pigment Red 254 (PR254), Diketopyrrolo-Pyrrole (DPP), Polycyclic, CI56110  | Trade name(s): Irgazin DPP Red BO  | 
CAS name: Pyrrolo[3,4-c]pyrrole-1,4-dione, 3,6-bis(4-chlorophenyl)-2,5-dihydro-  | Sample source 1: Ciba  | Sample identifier 1: Irgazin DPP Red BO  | 
Sample source 2: Tate Gallery, Tate Colorant Collection, Tom Learner  | Source location 2: Millbank, London, SW1P4RG, London, UK  | Sample identifier 2: PR254, Irgazin DPP Red BO  | 
Sample source 3: Harvard Art Museums, Straus Center for Conservation & Technical Studies  | Source location 3: 32 Quincy St, Cambridge, MA 02138, US  | Color: Red  | 
MW (relative): 357.19, calculated  | Application: Raman microscopy/microspectroscopy  | Excitation source (nm): 785  | 
Mode: Scat  | Originating institution name: Museum of Fine Arts Boston  | Originating institution acronym: MFAB  | 
CAS registry no: 84632-65-5  | 
IRUG Structure Tracking #: 919 Common Name(s): Pigment Red 254 (PR254); DPP; CI56110 CAS Name: Pyrrolo[3,4-c]pyrrole-1,4-dione, 3,6-bis(4-chlorophenyl)-2,5-dihydro- CAS Registry No: 84632-65-5 IRUG Material Class: Organic dyes and pigments (OD) Molecular Formula: C18 H10 Cl2 N2 O2 MW: 357.19  |