Hi everyone. I'm writing up a method for a patent, and I was wondering if any of you had any experience estimating the bulk (that is, anywhere from 10-100 kg) costs of a research chemical. I could put in for a quote from one of those overseas suppliers, but I feel a little dishonest doing that since I am not a customer, just trying to get a number for my own purposes. I am sure that the price per mass is much reduced from the specialty-chemical cost, but I have no idea how much.