Hello Basenotes members.
I want to make a long lasting cherry accord. I've tried it with bitter almond oil, aroma oils and different aroma chemicals and it smells great, but the duration is too short (20 minutes or so) I'd like it to last for more than an hour, so how can I formulate it?

I'd like to use benzaldehyde, but I can't get it where I live because of drug laws.