Question

What are all the functional groups in penicillamine?

Answer 1

Here we have an amine group

−

N

H

2

(Green).

Here there is a Thiol group

−

S

H

(Blue)

and at last there are an carboxylic acid group

−

C

O

O

H

(Yellow)

Then there are two methyl groups

−

C

H

3

. But those are normally not considered as "functional groups".

Answer 2

as you can see in the image

The functional groups are

Amine,carboxylic acid,Thioalcohol

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