3,4-Dihydroxyphenethylamine, N-ethyl-N-(2-phenethyl)-, oxalate (2:1) 70044-93-8 Phenethylamine, 3,4-dihydroxy-N-ethyl-N-(2-phenethyl)-, oxalate (2:1) Pyrocatechol, 4-(2-(N-ethylphenethylamino)ethyl)-, oxalate (2:1)