EC-No
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The terms EC-No and EC# refer to the seven-digit code (sometimes called the EC number) that has been allocated by the Commission of the European Communities for commercially available chemical substances within the European Union. The European EC Number should not be confused with the Enzyme Commission EC number for enzymes.
The "EC#" designation supersedes the outmoded EINECS and ELINCS designations, and the EC# codes include those on the so-called No-longer Polymers List, a list of substances that were on the European market between 18 September 1981 and 31 October 1993 and at the time were regarded as polymers, but are no longer regarded as such.
Format
The EC# is made up of seven digits according to the pattern xxx-xxx-x.
EINECs numbers start with number 200-001-8.
ELINCS numbers start with 400-010-9
Numbers in the No-longer Polymers List start with 500-001-0.
The EC/EINECS/ELINCS Number may be written in a general form as:
NNN-NNN-R 123-456-0
in which R is the check digit and N represents a fundamental sequential number. The check digit is the remainder of the following sum after division by 11:
N1 + 2×N2 + 3×N3 + 4×N4 + 5×N5 + 6×N6
See also
External links
- http://ecb.jrc.it/esis/ ESIS (European chemical Substances Information System)- By Rémi Allanou.de:EG-Nummer
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
