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In the News (Fri 25 May 18)

  IUPAC   (Site not responding. Last check: 2007-10-22)
Het is een onafhankelijke organisatie die zich bezighoudt met het opzetten en uitbreiden van standaarden die van belang zijn voor de scheikunde in de breedste zin van het woord.
Ook heeft de IUPAC gezorgd voor een consistente naamgeving van de groepen van het periodiek systeem en onderhoudt zij de indeling ervan.
IUPAC is lid van de International Council of Science (ICSU), een in 1931 opgerichte onafhankelijke organisatie die bezighoudt met standaardisatie binnen de wetenschap in het algemeen.
www.thumpershollow.com /encyclopedia/I/IUPAC   (140 words)

 ICSU Membership
IUPAC promotes continuing cooperation among the chemists of its Member Countries; studies topics of international importance to chemistry requiring standardization or codification; cooperates with other international organizations in topics of a chemical nature; and contributes to the advancement and understanding of pure and applied chemistry in all aspects.
IUPAC is recognized as the international authority on chemical nomenclature, terminology, symbols, units, atomic weights and related topics.
IUPAC conducts a biennial Congress (Ottawa 2003, Beijing 2005) aimed toward frontiers in the chemical sciences, and sponsors numerous symposia in specialized topics in chemistry.
www.icsu.org /4_icsumembers/IntScienUn.php?SU=IUPAC   (289 words)

 IUPAC report- Natural and synthetic substances
In a recent article published in Pure and Applied Chemistry, the IUPAC Subcommittee on Medicinal Chemistry and Drug Development reached the conclusion that natural substances and synthetic compounds are complementary as sources for new drugs.
IUPAC was formed in 1919 by chemists from industry and academia.
IUPAC is recognized as the world authority on chemical nomenclature, terminology, standardized methods for measurement, atomic weights and many other critically evaluated data.
www.eurekalert.org /pub_releases/2003-04/iuop-irn041803.php   (614 words)

 An Open Standard for Chemical Structure Representation - The IUPAC Chemical Identifier
IUPAC has long been involved in the development of systematic and standard procedures for naming chemical substances on the basis of their structure.
IUPAC is now developing a means of representing chemical substances in a format more suitable for digital processing, involving the computer processing of chemical structural information (connection tables).
IUPAC has agreed to play a lead role in representing the international chemistry communities in the development of Chemical Markup Language (CML) (7), which is an extension of the more general XML (Extended Markup Language) with special ability to handle chemical information.
www.hellers.com /steve/resume/p157.html   (1977 words)

 IUPAC nomenclature   (Site not responding. Last check: 2007-10-22)
IUPAC nomenclature is a systematic way of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).
In IUPAC nomenclature, a number of prefixes, suffixes and infixes are used to describe the type and position of functional groups in the compound.
The IUPAC nomenclature scheme becomes rapidly more elaborate for more complex cyclic structures, with notation for compounds containing conjoined rings, and many common names such as phenol, furan, indole, etc. being accepted as base names for compounds derived from them.
www.worldhistory.com /wiki/I/IUPAC-nomenclature.htm   (1878 words)

 Iupac - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-22)
Iupac International Conference on Ionic Polymerization: IP'01, Crete, October 2001 (Macromolecular Symposium S.)
A report on the first IUPAC International Conference on Bio-based Polymers (ICBP 2003).
The 39th IUPAC Congress and 86th conference of The Canadian Society for Chemistry.
encyclopedia.worldsearch.com /iupac.htm   (169 words)

 IUPAC Prize for Young Chemists
The IUPAC Prize for Young Chemists has been established to encourage outstanding young research scientists at the beginning of their careers.
In keeping with IUPAC's status as a global organization, efforts will be made to assure fair geographic distribution of prizes.
In addition, some IUPAC National Adhering Organizations are soliciting applications in their own countries, frequently in conjunction with a national award.
www.tau.ac.il /acad-sec/grantsite/avodot-mehkar/1.htm   (493 words)

 Chemistry International -- Newsmagazine for IUPAC
This position is consistent with the elements at the head of each group being significantly different from their congeners: hydrogen lies at the head of the entire table and as such can be expected to be strikingly different from all the elements, as is in fact the case.
Herb Kaesz, professor at the University of California at Los Angeles, CA, USA, is a member of, among others, the IUPAC Inorganic Chemistry Division and the Committee on Chemistry Education.
Peter Atkins, professor at Lincoln College at the University of Oxford, UK, is the chairman of the IUPAC Committee on Chemistry Education.
iupac.org /publications/ci/2003/2506/ud.html   (410 words)

 International Union of Pure and Applied Chemistry
The International Union of Pure and Applied Chemistry (IUPAC) serves to advance the worldwide aspects of the chemical sciences and to contribute to the application of chemistry in the service of Mankind.
Read about IUPAC to learn who we are and what we do.
IUPAC encourages the submission of projects in all areas of chemistry relevant to its work.
www.biologie.uni-hamburg.de /b-online/library/iupac/www_iupac_org.html   (449 words)

The mission of the International Union of Pure and Applied Chemistry (IUPAC) is to advance the worldwide aspects of the chemical sciences and to contribute to the application of chemistry in the service of humankind.
It is not difficult to argue that IUPAC has neglected, if not turned its back on, one of its potentially most important constituencies: the international community of chemists affiliated with the union.
IUPAC needs the widest possible support and engagement of the global community of chemists to achieve its aims, in the same way that chemists need the support of their international union to develop and maintain the standards, values, and ethics of chemistry and to promote the public's appreciation of the science.
pubs.acs.org /cen/topstory/7944/7944sci2.html   (784 words)

 Element 110 Is Named Darmstadtium   (Site not responding. Last check: 2007-10-22)
At the 42nd General Assembly in Ottawa, Canada, the IUPAC Council officially approved the name for element of atomic number 110, to be known as darmstadtium, with symbol Ds.
In accordance with IUPAC procedures, the discoverers at the GSI were invited to propose a name and symbol for element 110 to the IUPAC Inorganic Chemistry Division.
More information about IUPAC and its activities is available at http://www.iupac.org.
www.sciencedaily.com /print.php?url=/releases/2003/08/030820073330.htm   (282 words)

 Element 106 name change being reconsidered   (Site not responding. Last check: 2007-10-22)
Last fall, the IUPAC nomenclature committee stunned the scientific community by rejecting the names proposed for elements 104 to 108 by their discoverers and submitting their own names instead (see Currents, Oct. 14, 1994).
According to the CandEN report, the IUPAC executive committee has bowed to the pressure and is now recommending that the IUPAC names be reverted back to a "provisional" status.
If the names of 106 and the other transuranium elements in question are submitted for public debate, chemists will have five months to submit their comments through one of 19 centers around the world.
www.lbl.gov /LBL-Science-Articles/Archive/element-106-name.html   (349 words)

 International Union of Pure and Applied Chemistry   (Site not responding. Last check: 2007-10-22)
In certain areas, and particularly in metrology, it is important for IUPAC to retain consistency with definitions given by ‘higher authorities’ such as in the International Vocabulary of Basic and General Terms in Metrology [VIM; ref.
For the same reason, general laboratory slang, pertaining to a particular field, should not be used in written reports, as this will often not be understood by readers versed in related areas of chemistry, who nevertheless wish to gain an understanding of the new field.
The decimal marker for IUPAC publications in English should be a point on the line.
sunsite.wits.ac.za /iupac/reports/provisional/guidelines.html   (3122 words)

 Articles: Elementary, my dear IUPAC
That’s because the rules, laid down by IUPAC (the International Union of Pure and Applied Chemistry, based in Oxford) say that no chemical element may be named for a living person.
The last proposal from IUPAC was presented to its annual conference in 1994 but could not be agreed; a new round of consultation based on a revised list of names finished at the end of May 1996 and it is hoped to announce the results at the 1997 General Assembly.
The strangest part of this whole dispute is that in some cases only a single atom of the element has ever been identified, and that all the atoms have in any case long since decayed—the longest half life of any of them is 70 seconds.
www.worldwidewords.org /articles/unnil.htm   (692 words)

 ACD/Labs Free IUPAC Name   (Site not responding. Last check: 2007-10-22)
The algorithm identifies the parent fragment of a structure by applying the appropriate IUPAC nomenclature principles.
Free IUPAC Name is restricted to structures with less than 50 atoms and no more than 3 rings in any polycyclic part.
To use the IUPAC Naming tool, draw the chemical structure in the 2D structure box (see details under structure searching), then click on the 'name' button to display the IUPAC name.
iupac.webinforsearch.com /url.php?q=iupac&u=nzznwzimfhwfbnezithnzzmflpnpzerth_urlngzottlsnzzainlabs-dahfnzzmflpnezxhl   (131 words)

 SCOPE/IUPAC report on endocrine active substances to be published
An Executive Summary is available on the IUPAC website at http://www.iupac.org/publications/pac/2003/7511/.
The Executive Summary will be sent to the IUPAC National Adhering Organizations, Associate National Adhering Organizations, and Company Associates, as well as major chemical societies and other interested organizations throughout the world.
In addition to overall conclusions regarding the present state of knowledge, a series of more than 40 specific research recommendations was developed to assist future efforts.
www.eurekalert.org /pub_releases/2003-10/iuop-sro103003.php   (368 words)

 IUPAC   (Site not responding. Last check: 2007-10-22)
To address the problem, IUPAC should encourage and facilitate the coordination of the variety of initiatives proposed, with a view to enhancing the importance of chemical education at all levels, and to utilize younger chemists to promote the subject and its achievements.
It is recommended that IUPAC collaborate with industry, trade associations, learned societies and academe to discuss how best to achieve these aims.
The discussion of the proposal made it clear that Council was not approving an unlimited expenditure, but rather that the amount to be spent on this effort would be determined by the Executive Committee.
www.shd.org.yu /HtDocs/SHD/IUPAC.html   (758 words)

 IUPAC Names
This other method is called the IUPAC method (from the International Union of Pure and Applied Chemistry) and it involves picking out the longest continuous chain of carbon atoms, then identifying what groups are attached to that chain and indicating where they are attached.
This compound has four carbon atoms lined up one after the other, so its IUPAC name is butane.
The IUPAC name for the other structural formula is methylpropane (or 2-methylpropane).
dl.clackamas.cc.or.us /ch106-01/iupac.htm   (632 words)

 Alcohol Reactivity
In the IUPAC system of nomenclature, functional groups are normally designated in one of two ways.
If you are uncertain about the IUPAC rules for nomenclature you should review them now.
When the hydroxyl functional group is present together with a function of higher nomenclature priority, it must be cited and located by the prefix hydroxy and an appropriate number.
www.cem.msu.edu /%7Ereusch/VirtualText/alcohol1.htm   (2583 words)

 Current IUPAC Projects
The results of these studies will be presented at the IX IUPAC Mycotoxin and Phycotoxin Symposium in Rome during May 1996.
The effect of fumonisins on free sphingoid base levels in various cultured mammalian cells and in the plasma and urine of various animals (rats, ponies, pigs, etc.) dosed with fumonisins have been demonstrated.
A joint project has been established between scentists at PROMEC and the Department of Chemistry at the University of Stellenbosch to evaluate the photocatalytic degradation of the microcystins in water.
www.cfsan.fda.gov /~frf/iuproj.html   (680 words)

 Organic Nomenclature
The IUPAC nomenclature system is a set of logical rules devised and used by organic chemists to circumvent problems caused by arbitrary nomenclature.
The IUPAC system requires first that we have names for simple unbranched chains, as noted above, and second that we have names for simple alkyl groups that may be attached to the chains.
Double bonds precede triple bonds in the IUPAC name, but the chain is numbered from the end nearest a multiple bond, regardless of its nature.
www.cem.msu.edu /~reusch/VirtualText/nomen1.htm   (2190 words)

 Chemistry glossary
IUPAC International Union of Pure and Applied Chemistry, Glossary of Terms Used in Combinatorial Chemistry, D. Maclean, J. Baldwin, V.T. Ivanov, Y. Kato, A. Shaw, P. Schneider, and E. Gordon, Pure Appl.
IUPAC International Union of Pure and Applied Chemistry, Glossary of Terms used in Photochemistry, Pure and Applied Chemistry 68 (12): 2223-2286, Mar. 1996.
IUPAC International Union of Pure and Applied Chemistry, Glossary of Terms in Quantities and Units in Clinical Chemistry, Biochim Clin 1995; 19: 471-502.
www.genomicglossaries.com /content/chemistry.asp   (4592 words)

 Periodic table group
There is considerable confusion surrounding the two old systems in use (old IUPAC and CAS) that combined the use of Roman numerals with letters.
In the old IUPAC system the letters A and B were designated to the left (A) and right (b) part of the table, while in the CAS system the letters A and B were designated to main group elements (A) and transition elements (B).
The new IUPAC scheme was developed to replace both systems as they confusingly used the same names to mean different things.
www.fact-index.com /p/pe/periodic_table_group.html   (360 words)

The International Union of Pure and Applied Chemistry (IUPAC) serves to build global interaction among research communities and promote advances in chemical sciences and technology at the international level.
Nine young scientists attended the 40th IUPAC Congress and 43rd General Assembly in Beijing, China, August 2005.
IUPAC will be awarding a cash prize and travel expenses to the next General Assembly for an exceptional thesis in the chemical sciences.
www.nationalacademies.org /usnc-iupac   (279 words)

 [No title]   (Site not responding. Last check: 2007-10-22)
Common names:  semisystematic set of names applied to compounds mostly before IUPAC rules devised.
Although IUPAC system works, common names are still used.
  Some IUPAC names are long and cumbersome, and it is easier to apply a shorter simple name.
www.ipfw.edu /chem/261/261Fall02/261nt002f.htm   (551 words)

 Print Version
IUPAC Glossary of terms in combinatorial chemistry, revision of the 1999 Technical Report, current project 2003-044-1-700 http://www.iupac.org/projects/2003/2003-044-1-700.html
IUPAC definitions are reprinted with the permission of the International Union of Pure and Applied Chemistry.
It is easy to lose sight of the numbers involved in combinatorial chemistry and useful to recall the old story of the inventor of chess and his patron, the emperor of China.
www.genomicglossaries.com /CONTENT/printpage.asp?REF=/content/libraries_synthesis.asp   (4518 words)

 ACD/Name: IUPAC Name Technical Info
IUPAC names, widely used throughout chemical literature and databases and created according to nomenclature recommendations of International Union of Pure and Applied Chemistry, and
Some structures are not assigned the most preferred IUPAC or Index names but, if this is the case, such names vary only slightly from the preferred ones.
There are some cases where the IUPAC and Index naming algorithms differ, and cannot be described briefly.
www.acdlabs.co.uk /products/name_lab/name/tech.html   (815 words)

 IUPAC Congress Focuses on Innovation in Chemistry   (Site not responding. Last check: 2007-10-22)
The International Union of Pure and Applied Chemistry (IUPAC) has called for papers for its 40th Congress, to be held August 14–19, 2005 in Beijing, China.
Recognized by all the sciences and by the national-level academies of science as the international representative body for chemistry, IUPAC is the authority on chemical nomenclature, terminology, symbols, atomic weights, and related topics.
The Congress is sponsored by IUPAC, the China Association for Science and Technology, the Chinese Academy of Sciences, the National Natural Science Foundation of China, the Ministry of Science and Technology of China , the Ministry of Education of China, and the SINOPEC Corporation.
www.acs.org /portal/a/c/s/1/feature_acs.html?id=c373e902489329d28f6a17245d830100   (443 words)

 IUPAC Nomenclature   (Site not responding. Last check: 2007-10-22)
This HTML reproduction of Sections A, B and C of IUPAC "Blue Book" is as close as possible to the published version [see Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F, and H, Pergamon Press, Oxford, 1979.
Copyright 1979 IUPAC.] If you need to cite these rules please quote this reference as their source.
The HTML reproduction of the IUPAC Nomenclature of Organic Chemistry is published by Advanced Chemistry Development, Inc. with permission of the IUPAC.
www.acdlabs.com /iupac/nomenclature   (251 words)

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