Chemical Abstracts Registry Service Number (CAS No).
Chemical Abstracts Registry Service Number (CAS No). : A number assigned to a single chemical by the Chemical Abstracts Service, Columbus Ohio, a US-based chemical reference service
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}