Biebrich scarletAcid Scarlet BAAmacid Chrome Red 3BC.I. 26905C.I. Acid Red 66C.I. Acid Red 66, disodium saltCalcochrome Red 650Croceine scarletFast Scarlet BAFenazo Scarlet BImperial Scarlet 3BImperial Scarlet 3BNNaphthazine Scarlet BIScarlet 3BScarlet Red Sulfonate NFSodium 6-(2-hydroxynaphthylazo)-3,4'-azodibenzenesulphonateWool Scarlet 5RWool Scarlet BRacid red 66ponceau Bponceau BS