So in an odd coincidence I'm trying to do the same sort of thing. I want my search to go to Amazon.com but to use the ASIN to go to the correct book page rather than go to the search page.
My search string is
http://www.amazon.com/dp/{identifiers:select(amazon)}
and all the Kindle books I've tried this with have a correct Amazon ID and no ISBN and they all go to the URL
https://www.amazon.com/b?node=20547412011, which is just seems to be just a bunch of junk being sent instead of the ASIN.
I also tried
https://www.goodreads.com/book/show/{identifiers:select(goodreads)}
which also doesn't work so it's definitely a Identifiers problem not just an issue with ASINs.
Any help will be really appreciated, Thanks!