〔63-91〕 HO3SC10H5(OH)N∶NC10H5(OH)COOHC21H14N2O7S 438.42
[2-羟基-1-(2-羟基-4-磺基-1-萘基偶氮)-3-萘甲酸;钙红指示剂;Cal-Red indicator;Potton and Reeder’s reagent;2-Hydroxy-1-[(2-hydroxy-4-sulfo-1-naphthalene)azo]naphthalene-3-carboxylic acid;HHSNN;HSN]
性状 紫红色或褐色结晶性粉末。易溶于氢氧化钠溶液和氨水,微溶于水。
