Dear sir


Please suggest me a university in the united states of america .I want to do phd in organic chemistry .I have planned to take GRE TOEFL . My academic percentage is 80%

Please reply

There are thousands here. I'm thinking that there ought to be an advisor at your current school to help you with some suggestions. You should check.

Alos, you'll need to narrow down some preferences, like
Tuition amount
Location
Reputability of the organic chemistry program
Size of the university, etc.

I agree with above
You have to look at all the things you want in the school. Size of campus and student body, size of classes, visit schools as well. It might not be as important for grad students as it is for undergrads but I still think environment of a school is important. Ex. Some schools are very intense while others are very laid back.
Collegeboard.com can give you basic information about some schools, but I do not know if they give much for grad schools because it is more for undergrads.

p.s. brown is a great school if you want to be in the east.
I have to rep my school (but do not judge by my message... my mood at the moment is quick responses lol)

If you are a foreign student, GA TECH has a great PhD program in your field. They also have wonderful programs for foreign students.