Question: I cannot find sinopia colored paint   - is there another color I would be able to substitute for that?
Option 0: Yes, Sinopia red has many names, at least one of which you should be able to find in your local shop. Look for Venetian red, Turkey red, Persian red, Indian red  or Venetian Red.
Option 1: Yes, Sinopia red has many names, at least one of which you should be able to find in your local shop. Look for Venetian red, Turkey red, Persian red, Indian red  or red iron oxide.
Answer: 1