CAS of Chemical?

[CryoThio]

I don't know how to name it, but I am looking for the cas of the ANPP for apha methyl fentanyl (79704-88-4).

So like how "regular" fentanyl uses ANPP in the synthesis, I'm looking for the cas of the chemical that replaces ANPP in the synthesis of alpha methyl fentanyl.

If anyone here vends that, that would be great to know too.