1-Naphthalenesulfonic acid, 5-hydroxy-6-(1-naphthalenylazo)-, monosodium salt 5858-53-7 C.I. 14830 C.I. Acid Red 20 (VAN) C.I. Acid Red 20, monosodium salt (8CI) Double Ponceau 2R Double Ponceau 3R Double Ponceau 4R Double Ponceau R EINECS 227-493-7 Graphtol Bordeaux HB Helio Bordeaux Helio Bordeaux B Helio Bordeaux BLC Jungle Maroon Lutetia Brilliant Bordeaux B Lutetia Brilliant Bordeaux BO NSC 45204 Oralith Bordeaux HB Pigment Bordeaux BLC Resamine Bordeaux BLC Segnale Light Bordeaux 2BL Siloton Bordeaux 2BL Sodium 5-hydroxy-6-(naphthylazo)naphthalenesulphonate Uncas Maroon X-1972 Versal Bordeaux BL