英文别名Calconcarboxylic acid sodium salt; 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid sodium salt; 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid sodium salt; Calconcarboxylic acid; Patton-Reeder indicator; Cal Red; Patton and Reeder's indicator 
