I don't know what it's worth, but I tell you what I think as a newbie.
Blood Donor Clinic. I would ask myself: What kind of people or business would a name blood donor clinic? A profit one? I don't think the public would donate to a profit place, not likely to continue a profit enterprise that makes profit of donated blood. So, who else would want to own a blood donation clinic? Non-profit organization or a charity organization. They would probably ask you to donate your blooddonationclinic.com, so they would set a non-proft blood donor clinic website for blood solicitation.
I doubt that you would fetch much from this name.