Synonyms: Benzenediazonium, 3-methoxy-4-(1-pyrrolidinyl)-, 2-hydroxy-5-sulfobenzoate (1:1);3-Methoxy-4-pyrrolidinobenzenediazonium sulfosalicylate;Benzenediazonium, 3-methoxy-4-pyrrolidino-, sulfosalicylate;3-Methoxy-4-(1-pyrrolidinyl)benzenediazonium, salt with 5-sulphosalicylic acid (1:1);Benzenediazonium, 3-methoxy-4-(1-pyrrolidinyl)-, salt with 2-hydroxy-5-sulfobenzoic acid (1:1);3-methoxy-4-(pyrrolidin-1-yl)benzenediazonium 3-carboxy-4-hydroxybenzenesulfonate