英文名称: 4-(2-Pyridylazo)Resorcinol Monosodium Salt Monohydrate; 4-(2-Pyridylazo)Resorcinol Monosodium Salt Hydrate; 4-(2-Pyridylazo)Resorcinol Monosodium Saltmonohydrate; Par-Na; Sodium 4-(2-Pyridylazo)Benzene-1,3-Diol Hydrate; 4-(2-Pyridylazo)Resorcinol Monosodium Salt Hydrate; Par Monosodium Salt Hydrate