Chemical Abstracts Service of the American

MSDS are available from the Chemical Abstract Service of the American Chemical Society (ACS), 1155 6th St. NW Washington DC 20036, or the Internet at http//www.acs.org, and from the chemical manufacturer. A general website to these is http //hazard.com ... 

CAS (Chemical Abstract Service) Registry Numbers-identifying numbers assigned to chemical substances by the Chemical Abstract Service of the American Chemical Society and used by the Environmental Protection Agency... 

On the assumption that the Rhodonines of vision are as described above, the Chemical Abstract Service of the American Chemical Society provided systematic names for these chromophores using the IUPAC 1982 notation. The names, expressed as ions based on Vitamin A[ and provided in 1998 were ... 

CAS Registry Number A unique number having up to nine digits that is assigned to a chemical by the Chemical Abstracts Service of the American Chemical Society. With the exception of aqueous solutions, mixtures are not covered under this registry. 

This is the Chemical Abstracts Service registry number. The CAS number is a unique number assigned to each substance by the Chemical Abstracts Service of the American Chemical Society. It definitively identifies the substance regardless of how it is named or how its formula is written. No two substances have the samw CAS. HAPs such as Nickel Compounds and Fine Mineral Fibers that are groups of substances do not have a specific CAS. An example of a chemical CAS is Fluorene CAS 86-73-7. 

CAS stands for the Chemical Abstract Service registry number identifying numbers assigned to chemical substances by the Chemical Abstract Service of the American Chemical Society and used by the Environmental Protection Agency (EPA) to aid in registering chemicals under the federal Toxic Substances Control Act (TSCA) of 1976, Petroleum products containing additives are termed "mixtures" by the TSCA and, as such, do not have CAS nmnbers. All chemical substances used in such mixtures are assigned CAS numbers and must be listed with the EPA by the supplier. 

CAS = Chemical Abstracts Services of the American Chemical Society lUPAC = International Union of Pure and Applied Chemistry. 

Today, there are several systematic nomenclatures but only two of them are so widely used that the average chemist is likely to encounter them with much frequency. One of these is the lUPAC (International Union of Pure and Applied Chemistry) system and the other is the CAS (Chemical Abstracts Service of the American Chemical Society) system. Both these organizations have numerous on-going committees and commissions to address both old and new problems in nomenclature. 

This is the Chemical Abstracts Service (CAS) Registry number. Chemical Abstracts, published by the American Chemical Society, is a listing of the abstract or summary written for any paper in the chemical literature. Every compound made gets a number. This makes for easy searching by computer, as well as by hand. 

Figure 16.1 illustrates the process we recommend for obtaining chemical property data [5]. Assessors usually start with a chemical name or synonym, Chemical Abstracts Service (CAS) Registry Number, and/or the chemical structure. The first task is to confirm the identification and structure of the chemical of interest. The largest (over 30 million chemicals) and most authoritative, but a relatively expensive source of chemical identification information is the Chemical Registry file of the American Chemical Society. However, there are several... 

The use of proper chemical nomenclature is essential for effective scientific communication. More than one million new substances are reported each year, each of which must be identified clearly, unambiguously, and completely in the primary literature. Chemical compounds are named according to the rules established by the International Union of Pure and Applied Chemistry (IUPAC), the International Union of Biochemistry and Molecular Biology (IUBMB) [formerly the International Union of Biochemistry (IUB)], the Chemical Abstracts Service (CAS), the Committee on Nomenclature, Terminology, and Symbols of the American Chemical Society, and other authorities as appropriate. For more information on naming chemical compounds, refer to the bibliography in Chapter 18. This chapter gives the editorial conventions and style points for chemical compound names. 

Many of the important sources of engineering information are subscription services. The American Chemical Society s Chemical Abstracts Service is the best source for chemical properties and reaction kinetics data. Chemical abstracts can be searched online through the SciFinder subscription service (www.cas.org). This is available in most university libraries. 

The reader is referred to Nomenclature of Organic Chemistry, issued by the Commission on Nomenclature of Organic Chemistry, International Union of Pure and Applied Chemistry, 3rd ed., Butterworth, London, 1971, Section B, from which this section was taken. See also The Naming and Indexing of Chemical Compounds from Chemical Abstracts (reprint of the Introduction to the Subject Index to Volume 56 (Jan. June 1962) of Chemical Abstracts, Chemical Abstracts Service, American Chemical Society, Easton, Pennsylvania, 1962,1 5 132-146. 

Figure 12 shows that the Japanese patent has the priority but the patent publication had not arrived at Chemical Abstracts Service at the time the abstract was written about the European patent. The situation is particularly difficult with American patents because under US patent law there is only one step after application Only when the patent is granted is the document published (see example in Sect. 2.6). That means, if a US patent document is cited everybody knows that the patent has been granted. In all other patent processes the patent document will be published as an application and later once again when it is granted. With a European patent application the priority has to be named -this gives, in the case of a patent family, the cross-reference to the parent patent - and will be cited in the corresponding CA abstracts. 

Typical bibliographic databases are the CA File of Chemical Abstracts Service CAS) or Medline of the US National Library of Medicine. Most electronic journals provide articles as full-text files, e.g., the Journal of the American Chemical Society ( ACS). 

CAS/STlS[Interna.tiona.1. CAS/STN offers stmcture searchable files such as Registry, Beilstein, MARPAT, CASREACT, and Gmelin a variety of learning files, eg, LRegistry, LBeHstein, LMARPAT, and LCASREACT and software products such as STN Express for on-line stmcture and substmcture searching. Chemical Abstracts Service, a division of the American Chemical Society, has pubHshed Chemical Abstracts since 1907 and joindy operates STN International with EIZ Kadsmhe and the Japan Information Center of Science and Technology. 

GORE. The CORE Electronic Chemistry Library is a joint project of Cornell University, OCLC (On-line Computer Library Center), Bell Communications Research (Bellcore), and the American Chemical Society. The CORE database will contain the full text of American Chemical Society Journals from 1980, associated information from Chemical Abstracts Service, and selected reference texts. It will provide machine-readable text that can be searched and displayed, graphical representations of equations and figures, and full-page document images. The project will examine the performance obtained by the use of a traditional printed index as compared with a hypertext system (SUPERBOOK) and a document retrieval system (Pixlook) (6,116). 

Chemical Abstracts Service. The Chemical Abstracts Service (CAS), a division of the American Chemical Society, has produced Chemical Abstracts (CA) since 1907. Since the demise of Chemisches Zentralblatt and British Chemical Abstracts CA has been the preeminent medium for documenting new pubhcations in the field of chemistry and chemical engineering. CA documents chemical pubHcations of all types. It is not a patent database per se, but its patent component is larger than most databases devoted entirely to patents. Thus, for example, the number of patent references in CA for the years 1991—1993 ranged from 95,500—99,400 per year. 

J. B. Casey, W. J. Evans, W. H. PoweU, and T. E. Sloan, "A Stmctural Definitive Descriptor and Numbering System for Cluster Compound Nomenclature," Chemical Abstract Service, presented at the 198th National Meeting of the American Chemical Society, Miami Beach, FI., Sept. 1989. 

CAS Number - Chemical Abstracts Service Registry Number A CAS (Chemical Abstracts Service) Registry Number is a unique identifier that tells you, for example, that aeetone and dimethyl ketone are actually the same substance. The Chemical Abstracts Service is a division of the American Chemical Society. OSHA only requires certain items on an MSDS and a CAS number is not one of them. However, authors of MSDS s are allowed to add additional information, such as the CAS number, if they desire. The numbers you see on trucks on the highway are not CAS Numbers, butU.S. Department of Transportation (DOT) codes, which are not necessarily specific to each chemical. Their aim is to assist emergency responders. 

Finally, journal web sites and fee-based services can be used with success to find additional references to key topics. Examples of services that are particularly good include the American Chemical Society s Chemical Abstracts Service (CAS http //www.cas.org/) and their journal search page (http //pubs.acs.org/index.html) the Elsevier Scopus search engine (http //info. scopus.com/) and ScienceDirect database (http //www.sciencedirect.com/) and the ISI Web of Knowledge (http //isiwebofknowledge.com/). 

CAS Chemical Abstracts Service registry number. It is unique for each chemical without inherent meaning that and is assigned by the Chemical Abstracts Service, a division of the American Chemical Society. It allows for efficient searching of computerized databases. 

CAS registry number An identifying numberi ng system for chemicals called the Chemical Abstract Service (CAS) with individual numbers assigned by the American Chemical Society. CAS numbers identify specific chemicals and are assigned sequentially. Such a number is a concise and unique means of material identification. 

Abbreviations and acronyms are short forms of single words (e.g., M for molar) or multiple words (e.g., NMR for nuclear magnetic resonance). In abbreviations, the individual letters are usually pronounced (e.g., A-C-S for American Chemical Society) in acronyms, the letters form a new word (e.g., CASSl for Chemical Abstracts Service Source Index). Compound labels are used to represent chemical compounds. (See also chapter 3 and The ACS Style Guide for more information on abbreviations and acronyms.)... 

Even the development of Mendeleyev s periodic table of chemical elements did not grant researchers the ability to plan and design new materials. Although Mendeleyev correctly predicted the existence of a few new elements, the number of compounds that can be made from elements is extremely vast and complex. Chemical Abstracts Service, a division of the American Chemical Society, maintains a registry of known substances. As of May 2009, there are about 47 million substances in this registry, and roughly 4,000 new substances are added every day. 

Chemical Abstracts Service. Available online. URL http //www.cas. org/. Accessed May 28, 2009. A division of the American Chemical Society, the Chemical Abstracts Service has one of the most extensive collections of chemical information in the world. 

Chemicals are omnipresent in our world today. Chemical risk is a permanent issue in our everyday environment, obviously on work premises, and may also be caused by different circumstances of chemical assaults. Among all chemical accidents, eye projections are a specific issue because of the vulnerability of ocular structures and also because of the risk of major functional after-effects. Chemical Abstracts Service (CAS) is a division of the American Chemical Society. This International database of the American Chemical Society is a worldwide reference registering... 

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