comparative analysis of urinary 3-o methyldopamine and the two other methoxylated amines ( norepinephrine and metanephrine ) shows that the methoxylated derivative of dopamine , when compared to normal subjects values , increased at the greatest extent in sympathoblastoma , while in ganglioneurona and chromaffin tumours , normetanephrine is with a variable degree , the predominant compound .
C0011498
methyldopamine
C0013030
dopamine