Name this substance:

Detect priority function, non-priority function(s)!

For answers, use (possibly several times) the arrows ↑ Down! and ↓ Up! Complete please this question before moving on to the next one!

Priority: Carboxylic acid Non priority: Amine substituted by a methyl

Root ?

Propene

Name ?

2-(Methylamino)propenoic acid No need for position number of $C=C$ !