You can buy it online! I buy this brand!
This is the brand that I use. It tastes great. But BE CAREFUL. You are only supposed to add a few drops. Adding too much will make it taste AWFUL.
We bought this off of amazon for baklave and it smells great https://www.amazon.com/Orange-Blossom-Water-Cortas-10fl/dp/B000LQJ6DK/ref=sr_1_7?keywords=orange+blossom&qid=1558206729&s=gateway&sr=8-7
That said, you may have a bias and it just smells like toilet to you.. Five spice powder smells like those pink urinal pucks to me.
And correct.
The brand name is Cortas. Ordered through Amazon I would not call it dominant.
It's a distillation of orange blossoms. It's used in mediterranean cuisine and baking. Also added to coffee sometimes in Morocco. Here's an example, but there are many brands: https://www.amazon.com/Orange-Blossom-Water-Cortas-10fl/dp/B000LQJ6DK
Don't use orange bitters. Flavor is to completely different. Here