ChemSub Online: The Free Web Portal and Information System on Chemical Substances from around the World: Glossary and Acronyms - Letter E.
Provides information about:
- Chemical Inventories: Chemical inventory, AICS, DSL NDSL, EINECS, ELINCS, IECSC, NLP, NZIoC, TSCA.
- Registry Number, EC Number (EINECS, ELINCS, NLP), Chemical Name, Molecular Formula, Structure Formula.
- TSCA: TSCA Inventory List, TSCA Compliance Guide, TSCA Inventory Database, Current TSCA Inventory, Need TSCA Chemical List, Find Tsca, U. S. TSCA Inventory List, Many research chemists use updated TSCA Tracker to find new chem names.
- REACH: REACH compliance, REACH & GHS, REACHsuite, EU REACH IT Solutions, IT solutions for managing REACH compliance.

- Chemical Super Lists and Inventories:
Chemical Carcinogenesis Research Information System (CCRIS),
European Inventory of Existing Commercial Chemical Substances (EINECS),
European List of Notified Chemical Substances (ELINCS),
Europan chemical Substances information System (ESIS),
Hazardous Substances Data Bank (HSDB),
High Volume Industrial Chemical List (HVICL),
HSNO Chemical Classification and Information Database (CCID),
Inventory of Existing Chemical Substances Produced or Imported in China (IECSC),
Toxic Substances Control Act (TSCA),
ChemBlink, EPA HPV Challenge, EPA HPVIS, EU HPV-LPV, HSNO CCID, TOXLINE.
- Chemicals and Chemistry: Formaldehyde, chemicals, chemical substances, chemistry, Baytouch Systems.
- GHS, Globally Harmonized System of Classification and Labelling of Chemicals, Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemikalien, SGH, Système général harmonisé de classification et d'étiquetage des produits chimiques, 化学品分类及标记全球协调制度, 化学品の分類および表示に関する世界調和システム.
- InChI, InChIKey, MOSFIJXAXDLOML-UHFFFAOYSA-N, smiles, IUPAC Name.

ChemSub Online: The Free Web Portal and Information System on Chemical Substances from around the World: Glossary and Acronyms - Letter E.
Provides information about:
- Chemical analysis, Dedicated Analytical Solutions for chemical analysis from Foss, Brewing Lab Services, Siebel Institute Lab Services Brewing Analytical Testing.
- Chemical Jobs Worldwide, Better Jobs. Better Candidates Chemicals, Polymers, Plastics.
- Chemical lists free.
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- Chemical Testing Find Chemical Testing Laboratories.
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- Endocrine disruptor, modulateur endocrinien, perturbateur endocrinien, endokrine disruptoren, 内分泌攪乱物質, 內分泌干擾素.
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- Laboratory Testing, Reliability Testing of Components Component Analytical Services, Chemical Resistant Seals, Chemical resistant elastomer seals for all chemical reagents.
- The Dow Chemical Company, The leading chemical and plastics manufacturer. Test Labs Directory, ASTM Free Online Lab Directory Search by ASTM Standards.

ChemSub Online: The Free Web Portal and Information System on Chemical Substances from around the World: Glossary and Acronyms - Letter E.
Provides information about:
- Återvinning symbol, алкохол, гераниол, деканол, етилов алкохол, натриев пропионат, пентанол.
- エタプロコール, テオブロミン, 消毒用エタノール, 消毒用エタライト, 邻苯二甲酸酯.
- 5-diphenyl-1 4-pentadien-3-one, 1,2-benzenedicarboxylic acid, di-c6-8-branched alkyl esters, c7-rich, 1,6 hexanediol, 1-methoxy-2-propyl acetate, 1-pentanol, 2 метилбутан, 2,4-pentanedione, 2-(2-butoxyethoxy)ethanol, 2-methyl-3-butyn-2-ol, 2-methylpropanal, 3,7-dimethyl-6-octenal, 3-(diethylamino)cyclohex-3-enol, 3-methylbutanal, 4-butyrolactone, 7-methyltheophylline.
- Acetictracker, acetonperoxyd, acid compliant, acid compliant database, acid hydroxy, acid4, acido gluconico, adiponitrile, aerosoli, affald, aluminum chloride hydroxide sulfate, andningsmask asien, anglix, aphtiria, argirec, as4o6, aspirationsgefahr, astro chemicals, atmer 100, b2o3 chemical name, b2o3 name, background title, bas chemical name, benzeensulfonylchloride.
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EAT:
ECETOC Aquatic Toxicity.

In the context of current risk assessment procedures, the ECETOC Aquatic Toxicity (EAT) database has been used to assess the comparative sensitivity of different life stages of aquatic organisms to a range of chemical substances.
Both EC50 and NOEC data were analysed using Hazen percentiles in order to compare key life stages of both fish and aquatic invertebrates (no data available on aquatic algae or plants).
Based on fish NOEC data, larvae were more sensitive (ratio> 2.0) than embryos for 68% of substances, while fish larvae were of greater than or equal sensitivity to juvenile fish for 83% of substances.
Based on fish EC50 data (NOECs unavailable), juveniles were more sensitive than adults for 92% of substances. For a limited number of available substances, fish embryo-larval tests (as NOECs) were of greater than or equal sensitivity to lifecycle tests for 42% of substances.
Based on EC50 data (NOECs unavailable), aquatic invertebrate larvae were of greater than or equal sensitivity to juvenile invertebrates for 66% of substances, while the juveniles were of greater than or equal sensitivity to adults for 54% of substances.
Full details are presented for the calculated sensitivity ratios for individual organic and inorganic substances. The results are discussed with respect to current ecotoxicology test procedures and recommendations made for future work in this important area of environmental risk assessment.
 
EC:
European Commission.
Commission européenne.
 
EC Number, EC-No:
It is a unique numeric identifier allocated by the Commission of the European Communities as a term used to replace the EINECS / ELINCS / NLP number designation.

This number is a seven-digit system, separated into 3 groups by hyphens of the type XXX-XXX-X.
Which starts by:
- 2 or 3 (2XX-XXX-X or 3XX-XXX-X) for chemical substances belonging to EINECS (Existing Chemicals),
- 4 (4XX-XXX-X) for chemical substances belonging to ELINCS (New Chemicals),
- 5 (5XX-XXX-X) for chemical substances belonging to NLP (No-Longer Polymers),
- 6 (6XX-XXX-X) for list numbers automatically assigned by ECHA, e.g. to pre-registrations of substances with a CAS No,
- 7 (7XX-XXX-X) for list numbers assigned by ECHA to substances after inquiries by the ECHA Substance ID Team,
- 8 (8XX-XXX-X) for list numbers automatically assigned by ECHA to substances identified only with a CAS No. (continuation of the 6xx-xxx-x series),
- 9 (9XX-XXX-X) for list numbers automatically assigned by ECHA, e.g. to pre-registrations without a CAS No. or other numerical identifier (including reaction masses of more than one substance).
 
EC50:
Median effective concentration / Half maximal effective concentration / Effective Dose 50.

Is the amount of material required to produce a specified effect in 50% of an animal population.
 
ECETOC:
European Centre for Ecotoxicology and Toxicology of Chemicals.
 
ECHA:
European Chemicals Agency.

The Agency, located in Helsinki, Finland will manage the registration, evaluation, authorisation and restriction processes for chemical substances to ensure consistency across the European Union. These REACH processes are designed to provide additional information on chemicals, to ensure their safe use, and to ensure competitiveness of the European industry.

In its decision-making the Agency will take the best available scientific and technical data and socio-economic information into account. It will also provide information on chemicals and technical and scientific advice. By assessing and approving testing proposals, the Agency will minimize animal testing.

More information can be found on the ECHA web site: http://echa.europa.eu/.
 
ECx:
x% Effect Concentration.
 
ED:
Endocrine Disruptor.

Endocrine disruptors are exogenous substances that act like hormones in the endocrine system and disrupt the physiologic function of endogenous hormones. Studies have linked endocrine disruptors to adverse biological effects in animals, giving rise to concerns that low-level exposure might cause similar effects in human beings.

Endocrine disrupting compounds encompass a variety of chemical classes, including hormones, plant constituents, pesticides, compounds used in the plastics industry and in consumer products, and other industrial by-products and pollutants. Some are pervasive and widely dispersed in the environment. Some are persistent organic pollutants (POP's), and can be transported long distances across national boundaries and have been found in virtually all regions of the world. Others are rapidly degraded in the environment or human body or may be present for only short periods of time.

Health effects attributed to endocrine disrupting compounds include a range of reproductive problems (reduced fertility, male and female reproductive tract abnormalities, and skewed male/female sex ratios, loss of fetus, menstrual problems, changes in hormone levels; early puberty; brain and behavior problems; impaired immune functions; and various cancers.

One example of the consequences of the exposure of developing animals, including humans, to hormonally active agents is the case of the drug diethylstilbestrol (DES), a non-steroidal estrogen and not an environmental pollutant. Prior to its ban in the early 1970's, doctors prescribed DES to as many as five million pregnant women to block spontaneous abortion, an Off-label use of this medication prior to 1947. It was discovered after the children went through puberty that DES affected the development of the reproductive system and caused vaginal cancer. The relevance of the DES saga to the risks of exposure to endocrine disruptors is questionable, as the doses involved are much higher in these individuals than in those due to environmental exposures.
 
EEC:
European Economic Community.
 
EFDB:
Environmental Fate Database.
 
EFSA:
European Food Safety Authority.
 
EINECS:
European INventory of Existing Commercial chemical Substances.

It lists and defines all chemical substances that were on the European Community market between 1 January 1971 and 18 September 1981. (Einecs, OJ No C 146A, 15.6.1990).

Inventaire Européen des Substances chimiques Commerciales Existantes.
Inventaire des substances chimiques "existantes" commercialisies sur le marché européen entre le 1er janvier 1971 et le 18 septembre 1981. (Einecs, JO No C 146A, 15.6.1990).
 
EINECS Number, EINECS-No:
European INventory of Existing Commercial chemical Substances index number.

This number is a seven-digit system, separated into 3 groups by hyphens of the type XXX-XXX-X which starts at 200-001-8 for formaldehyde.
The first part of the number, starting from the left, has 3 digits; the second part has 3 digits and the final part consists of a single check digit.

The EINECS Number may be written in a general form as:
   NNN-NNN-R
   123-456-0

In which R represents the check digit and N represents a fundamental sequential number. The check digit is derived from the following formula:
   1N + 2N + 3N + 4N + 5N + 6N        R
   --------------------------- = Q + --
                 11                  11

In which Q represents an integer which is discarded.
Example, EINECS-No 300-015-5, the validity is checked as follows:
   (1x3) + (2x0) + (3x0) + (4x0) + (5x1) + (6x5)   38        5
   --------------------------------------------- = -- = 3 + --
                          11                       11       11

Q = 3 is discarded and R (the check digit) = 5.
 
ELINCS:
European LIst of Notified Chemical Substances.

This list is periodically updated as an Official Journal.
 
ELINCS Number, ELINCS-No:
European LIst of Notified Chemical Substances index number.

This number is a seven-digit system of the type XXX-XXX-X.
Which starts at 400-010-9 for tetrasodium 3,3'-[piperazine-1,4-diyl-bis[(6-chloro-1,3,5-triazine-2,4-diyl)amino(2-acetylamino-4,1-phenylene)azo]]bis(naphthalene-1,5-disulfonate.
 
Engineering Controls:
Engineering controls help reduce exposure to potential hazards either by isolating the hazard or by removing it from the work environment. Engineering controls include mechanical ventilation and process enclosure. They are important because they are built into the work process.

Engineering controls are usually preferred to other control measures such as the use of personal protective equipment. Substitution of a less hazardous material or industrial process is the best way to reduce a hazard and is often considered to be a type of engineering control.
 
Environmental Fate:
The environmental fate of a chemical is a statement of what tends to happen to the chemical when it is released into the environment. Fate depends on properties of the chemical such as solubility, vapour pressure, partition coefficient, stability and reactivity. A chemical may preferentially end up in air, in water, or in soil, and may break down quickly or slowly.
 
EPA:
Environmental Protection Agency.
 
EPM:
Equilibrium Partitioning Method.
 
ERMA New Zealand:
Environmental Risk Management Authority / Ngā Kaiwhakatūpato Whakararu Taiao.

The Environmental Risk Management Authority (the Authority) was established under the Hazardous Substances and New Organisms (HSNO) Act 1996.

The Authority's main role is to make decisions on applications to import, develop, or field test new organisms; or to import or manufacture hazardous substances to New Zealand.

The Agency of ERMA New Zealand is a crown entity established to carry out operations in support of or on behalf of the Authority and is lead by the Chief Executive, Rob Forlong. Members of the Authority, plus the chairperson of Ngā Kaihautū are the governing board of the Agency.
The Agency of ERMA New Zealand is made up of five groups, excluding the Office of the Chief Executive.

Ngā Kaihautū Tikanga Taiao is a statutory committee that advises the Authority on Māori issues. They provide reports to ERMA New Zealand on applications which raise significant issues or interests for Māori.
The tumuaki (chair) of Ngā Kaihautū participates in the Authority's governance meetings.
Ngā Kaihautū acts at all times to protect and uphold the integrity of tikanga and mātauranga Māori and to ensure it is appropriately applied to HSNO issues.
 
ES:
Exposure Scenario.
 
ESAC:
ECVAM Scientific Advisory Board.
 
ESD:
Exposure Scenario Document.
 
ESIS:
European chemical Substances Information System.
 
ESR:
Existing Substances Regulation.
 
EU:
European Union.

Formerly known as the EEC (European Economic Community) and the EC (European Community).
 
Exposure Scenario:
The set of conditions, including operational conditions and risk management measures, that describe how the substance is manufactured or used during its life-cycle and how the manufacturer or importer controls, or recommends downstream users to control, exposures of humans and the environment. These exposure scenarios may cover one specific process or use or several processes or uses as appropriate.
 
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