[maurajbo]

So the chemical formula for dopamine is C8H11NO2 and it looks like this: http://www.bip.bham.ac.uk/osmart/msctox/dopamine.jpg

A primary amine is an ammonia in which one hydrogen atom has been replaced by an alkyl group. A secondary amine is an ammonia in which two hydrogen atoms have been replaced by alkyl groups and a tertiary amine is an ammonia in which three hydrogen atmos have been replaced by alkyl groups.

So if I'm understanding the diagram, dopamine should be a primary amine. Is that right?

[stewie griffin]

Yes

[typhoon2028]

To determine Amine

3 - # hydrogens bonded to nitrogen

RNH2 --> (3-2) = 1 --> Primary
R1R2NH --> (3-1) = 2 --> Secondary
R1R2R3N --) (3-0) = 3 --> Tertiary