Coomassie Brilliant Blue G-250 Solid Coomassie Brilliant Blue G Brilliant Blue G in Isopropanol solution Names Other names C.I. 42655, C.I. Acid Blue 90 Brilliant indocyanine G, Brillantindocyanin G Xylene Brilliant Cyanine G, Serva Blue G Identifiers CAS Number 6104-58-1 3D model (JSmol) Interactive image ECHA InfoCard 100.025.509 KEGG D10799 Y PubChem CID 6324599 SMILES CCN(CC1=CC(=CC=C1)S(=O)(=O)O)C2=CC(=C(C=C2)/C(=C\3/C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)O)C=C3C)/C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC)C Properties Chemical formula C47H50N3NaO7S2 (Sodium salt) Molar mass 856.03 g/mol Solubility in water Slightly soluble in cold, soluble in hot (bright blue) Solubility in ethanol Soluble Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references