With more than 161,000 members, the American Chemical Society (ACS) is
the world’s largest scientific society and one of the world’s leading
sources of authoritative scientific information. A nonprofit
organization, chartered by Congress, ACS is at the forefront of the
evolving worldwide chemical enterprise and the premier professional home
for chemists, chemical engineers and related professions around the
globe. The programs and activities conducted by ACS
today are the products of a tradition of excellence in meeting member
needs that dates from the Society's founding in 1876." (Source:
ACS website )