Is Norepinephrine beta2 adrenomimetic?
The answer can be found in PubChem, which is linked in the comment by anongoodnurse. 

I would not say that 

Norepinephrine is beta2 adrenomimetic


because norepinephrine has many roles such as neurotransmitter. 
I would just say that 

Norepinephrine is alpha, beta adrenoagonist.


More pieces of information about it from PubChem: