EINECS number
   HOME

TheInfoList



Click Here for Items Related To - EINECS number
OR:
EINECS number on:   [Wikipedia]   [Google]   [Amazon]

The European Community number (EC number) is a unique seven-digit identifier that was assigned to substances for
regulatory Regulation is the management of complex systems according to a set of rules and trends. In systems theory, these types of rules exist in various fields of biology and society, but the term has slightly different meanings according to context. Fo ...
purposes within the
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been de ...
by the European Commission. The ''EC Inventory'' comprises three individual inventories, EINECS, ELINCS and the NLP list.


Structure

The EC number may be written in a general form as: NNN-NNN-R, where R is a check digit and N represents integers. The check digit is calculated using the
ISBN The International Standard Book Number (ISBN) is a numeric commercial book identifier that is intended to be unique. Publishers purchase ISBNs from an affiliate of the International ISBN Agency. An ISBN is assigned to each separate edition an ...
method. According to this method, the check digit R is the following sum modulo 11: :R = (N_1 + 2 N_2 + 3N_3 + 4N_4 + 5N_5 + 6N_6) \bmod 11 If the remainder R is equal to 10, that combination of digits is not used for an EC number. To illustrate, the EC number of
dexamethasone Dexamethasone is a glucocorticoid medication used to treat rheumatic problems, a number of skin diseases, severe allergies, asthma, chronic obstructive lung disease, croup, brain swelling, eye pain following eye surgery, superior vena ...
is 200-003-9. N1 is 2, N2 through N5 are 0, and N6 is 3. :\frac = \frac = 1 + \frac The remainder is 9, which is the check digit. There is a set of 181 ELINCS numbers (EC numbers starting with 4) for which the checksum by the above algorithm is 10 and the number has not been skipped but issued with a checksum of 1.


EC Inventory

The EC Inventory includes the substances in the following inventories. The content of these inventories is fixed and official.


List numbers

European Chemicals Agency The European Chemicals Agency (ECHA; ) is an agency of the European Union which manages the technical and administrative aspects of the implementation of the European Union regulation called Registration, Evaluation, Authorisation and Restrict ...
(ECHA) also applies the EC number format to what it calls "List number".Registered substances
at
European Chemicals Agency The European Chemicals Agency (ECHA; ) is an agency of the European Union which manages the technical and administrative aspects of the implementation of the European Union regulation called Registration, Evaluation, Authorisation and Restrict ...
(ECHA) The number are assigned under the REACH Regulation without being legally recognised. Hence, they are not official because they have not been published in the
Official Journal of the European Union An official is someone who holds an office (function or mandate, regardless whether it carries an actual working space with it) in an organization or government and participates in the exercise of authority, (either their own or that of their su ...
. List numbers are administrative tools only and shall not be used for any official purposes.


See also

*
Registration, Evaluation, Authorisation and Restriction of Chemicals Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) is a European Union regulation dating from 18 December 2006. REACH addresses the production and use of chemical substances, and their potential impacts on both human he ...
*
European chemical Substances Information System The European chemical Substances Information System (ESIS) was a chemoinformatics database that stored information system on chemicals of the European Union. It was created by the former European Chemicals Bureau, which completed its mandate in 20 ...
*
CAS registry number A CAS Registry Number (also referred to as CAS RN or informally CAS Number) is a unique identification number assigned by the Chemical Abstracts Service (CAS), US to every chemical substance described in the open scientific literature. It inclu ...


References


External links

{{DEFAULTSORT:Ec Number (Chemistry) Chemical numbering schemes European Union law Regulation of chemicals in the European Union