ChemSub Online: The Free Web Portal and Information System on Chemical Substances from around the World: Glossary and Acronyms - Letter R.
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 R.
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.
- Chemical products Chemicals Service Solutions Europe Full service for specialty chem.
- Chemical Testing Find Chemical Testing Laboratories.
- 试剂公司,化工厂,化工产品,化工词典,结构式检索,有机化学,无机化学,化学试剂,有机原料.
- Classification Labelling Packaging, Annex I of Directive 67/548/EEC, Annex VI to Regulation (EC) No 1272/2008, CLP, GHS, hazard symbol, irritant hazard symbol, chemical hazard symbols, GHS symbols, farosymbol, frätande symbol, gefahrensymbol, symboles et indications des dangers.
- Endocrine disruptor, modulateur endocrinien, perturbateur endocrinien, endokrine disruptoren, 内分泌攪乱物質, 內分泌干擾素.
- High Quality Biochemicals.
- Lab Chemical Inventory, Integrate Chemical Inventory with your lab operations.
- Laboratory Consultants, Reaction Engineering, Atlas - Controlled Lab Reactor easy to use and flexible.
- 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 R.
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.
- Benzofenone, bexol, brandsläckning, bromométhane, butanox m50.
- C11h16o, c2h2cl4, c2h2f2, c2h6cl2si, c3h5o2, c3h9n, c5h11no, c6h16n2, c7h12o4, c8h4n2, cafeine.
- Canadian domestic substances list, cao chemical name, cas number, ccid, ccris, chem, chem hazard, chemical, chemical danger symbols, chemical free, chemical hazard pictograms, chemical hazard symbol, chemical hazard symbols, chemical hazard warning symbols, chemical hazards symbols, chemical names, chemical online, chemical pictograms, chemical portal, chemical substances, chemical substances portal, chemical symbol for propane, chemical symbols.
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- Fe2o3 chemical name, febrex, flammable ghs, fluorotrichloromethane, forbudt for børn, formalin iupac name, formamide, formic acid, fplus, free portal, free web portal, gaeilge phrases, gaisras, gefahrensymbol, gefahrensymbol giftig, gefahrensymbole, gefahrensymbole ghs, genklene, gesundheitsschädlich.
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- Symbol n, symbol of danger, symbol of n, symbol t, symbol xi, symbol xn, symbole danger, symbole danger de mort, symbole dangereux, symbole de danger, symbole inflammable, symbole sécurité, symbole xn, symboles de danger, symbols of danger, system f, tete de mort en flamme, tete de mort totenkopf, tetrachlorodibenzodioxin, tetradecanoic acid, tilos a dohányzás tábla, Tous, toxic chemicals list, toxic hazard sign, toxic hazard symbol, toxic substances control act, toxicity system.
- Transderm nitro, trees reddit, trichlorosilane, tridil, triethylfosfaat, trinitrina, trinitroglicerina, trinitrol, trioxido de diantimonio, trisenox, tsca inventory, tsca inventory list, tsca list, tupakointi, umweltschutz pictograms, ureol, ureum, uvinul 3035, vie structure, voie cutanée, warning signs, waxsol, web pictogram, web portal, web portal free, web portal icon, web portal system, weed portal, witco chemical, www.xn.com, wykrzyknik, x n, xi, xi irritante, xi symbol, xn, xn symbol, xn-, zaščitne rokavice, zavrat.

 
 
R:
universal molar gas constant.
 
REACH:
Registration, Evaluation, Authorisation and Restriction of Chemicals.

On 29 October 2003, the European Commission adopted a proposal for a new EU regulatory framework for chemicals, COM (2003) 644. Under the proposed new system called REACH (Registration, Evaluation, Authorisation and Restriction of CHemicals), enterprises that manufacture or import more than one tonne of a chemical substance per year would be required to register it in a central database.
The aims of the proposed new Regulation are to improve the protection of human health and the environment while maintaining the competitiveness and enhancing the innovative capability of the EU chemicals industry. REACH would furthermore give greater responsibility to industry to manage the risks from chemicals and to provide safety information on the substances. This information would be passed down the chain of production.

Enregistrement, Évaluation, Autorisation et Restriction des Substances Chimiques.
Le 29 octobre 2003, la Commission européenne a adopté une proposition relative à un nouveau cadre législatif pour les substances chimiques, COM (2003) 644. Conformément au nouveau système, appelé REACH (Enregistrement, Évaluation, Autorisation et Restriction des Substances Chimiques), les entreprises fabriquant ou important plus d'une tonne d'une substance chimique par an seraient tenues de l'enregistrer dans une base de données centrale.
Cette proposition de nouveau règlement vise à améliorer la protection de la santé humaine et de l'environnement tout en préservant la compétitivité de l'industrie chimique de l'UE et sa capacité à innover. Dans le cadre de REACH, l'industrie assumerait par ailleurs une plus grande responsabilité dans la gestion des risques liés aux produits chimiques et dans la communication d'informations sur la sécurité des substances. Ces informations seraient transmises le long de la chaîne de production.
 
Ready biodegradability tests:
Stringent screening tests, conducted under aerobic conditions, in which a high concentration of the test substance (in the range of 2 to 100 mg/L) is used and ultimate biodegradation is measured by non-specific parameters like Dissolved Organic Carbon (DOC), Biochemical Oxygen Demand (BOD) and CO2 production. Small amounts of domestic sewage, activated sludge or secondary effluent form the microbial inoculum in tests for ready biodegradability. The inoculum should not have been artificially pre-adapted to the test substance through previous exposure to either the test substance or structurally related chemicals. The test substance is provided as the sole source of carbon for energy and growth. A positive result in a test for ready biodegradability can be considered as indicative of rapid and ultimate degradation in most environments including biological STPs.
 
Reproductive Effects:
Reproductive effects are problems in the reproductive process which may be caused by a substance. Possible reproductive effects include reduced fertility in the male or female, menstrual changes, miscarriage, embryotoxicity, fetotoxicity, teratogenicity, or harmful effects to the nursing infant from chemicals in breast milk.

Most chemicals can cause reproductive effects if there is an extremely high exposure. In these cases, the exposed person would experience other noticeable signs and symptoms caused by the exposure. These signs and symptoms act as a warning of toxicity. Chemicals which cause reproductive effects in the absence of other significant harmful effects are regarded as true reproductive hazards. Very few workplace chemicals are known to be true reproductive hazards.
 
RTECS:
Registry of Toxic Effects of Chemical Substances.

RTECS is a compendium of data extracted from the open scientific literature. The data are recorded in the format developed by the RTECS staff and arranged in alphabetical order by prime chemical name.

Six types of toxicity data are included in the file:
(1) Primary irritation;
(2) Mutagenic effects;
(3) Reproductive effects;
(4) Tumorigenic effects;
(5) Acute toxicity;
and (6) Other multiple dose toxicity.

Specific numeric toxicity values such as LD50, LC50, TDLo, and TCLo are noted as well as species studied and route of administration used. For each citation, the bibliographic source is listed thereby enabling the user to access the actual studies cited. No attempt has been made to evaluate the studies cited in RTECS.
The user has the responsibility of making such assessments.
 
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