Substances

Every CAS and EC number an entry in the record prints, by act. A number missing here is printed by no entry in the acts this record holds, which says nothing about the law.

By act

• Batteries Regulation: 4 CAS numbers and 4 EC numbers
• BPR: 10 CAS numbers and 18 EC numbers
• CLP: 4205 CAS numbers and 4386 EC numbers
• Cosmetics Regulation: 2767 CAS numbers and 2563 EC numbers
• PIC Regulation: 520 CAS numbers and 398 EC numbers
• Plant Protection Products Regulation: 154 CAS numbers and 98 EC numbers
• POPs Regulation: 61 CAS numbers and 47 EC numbers
• REACH: 1453 CAS numbers and 1387 EC numbers

Look up a number

Type a CAS or EC number, with or without its hyphens, or an Index No into the search box at the top of the page: it reads 50000 as CAS 50-00-0. Every number is also listed by act on the substances page.