General subject: Chemical Abstracts Service (http://ru.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BC%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D1%80%D0%B5%D1%84%D0%B5%D1%80%D0%B0%D1%82%D0%B8%D0%B2%D0%BD%D0%B0%D1%8F_%D1%81%D0%BB%D1%83%D0%B6%D0%)
Универсальный русско-английский словарь. Академик.ру. 2011.