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Topic: CAS number

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CAS registry number

Chemical Abstracts Service

UN number

Chemical compound

Oxidation state

EC number

American Chemical Society

Cetane

Chemical formula

Cytarabine

IUPAC nomenclature

Picric acid

Valdecoxib

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	CAS registry number - Wikipedia, the free encyclopedia
		CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys.
		A CAS registry number is separated by hyphens into three parts, the first consisting of up to 6 digits, the second consisting of two digits, and the third consisting of a single digit serving as a check digit.
		For example, the CAS number of water is 7732-18-5, and the checksum is calculated as (8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) mod 10 = 105 mod 10 = 5.
	en.wikipedia.org /wiki/CAS_number (390 words)

	CAS registry number - SmartyBrain Encyclopedia and Dictionary (Site not responding. Last check: 2007-11-06)
		CAS registry numbers are unique numerical identifiers for chemical compounds.
		A CAS registry number is separated by hyphens into three parts, the first consisting of up to 6 digits, the second consisting of two digits, and the third consisting of a single digit serving as a checksum.
		Occasionally, whole classes of molecules receive a single CAS number: all alcohol dehydrogenases have 9031-72-5.
	smartybrain.com /index.php/CAS_registry_number (325 words)

	ATSDR - Glossary of Terms
		The number of new cases of disease in a defined population over a specific time period [contrast with prevalence].
		The number of existing disease cases in a defined population during a specific time period [contrast with incidence].
		The number of units chosen from a population or an environment.
	www.atsdr.cdc.gov /glossary.html (4107 words)

	CHEMSEARCH [398,301]
		CAS is committed to the global advancement of science through the dissemination of scientific information to promote research performed by individuals and teams of scientists.
		CAS is aware of the changing needs of researchers who rely on scientific information to perform their daily tasks.
		CAS does not permit the building of Databases that have wide and general availability and no longer fulfill the purpose of individual or team research that CAS permits but instead serve as a substitute for the use of CAS Databases.
	library.dialog.com /bluesheets/html/bl0301.html (2869 words)

	Cypermethrin, beta Use
		Chemical Code is the California Department of Pesticide Regulation code number assigned as an identifier for each chemical.
		County Code is a code number that various California State agencies use to identify each California county.
		Field Count is the number of fields where this chemical was applied.
	www.pesticideinfo.org /Detail_ChemUse.jsp?Rec_Id=PC34935 (943 words)

	Chem 400 CAS Registry Numbers
		CAS Registry Numbers (CAS RN) are identifying numbers assigned by the Chemical Abstracts Service to specific chemical substances.
		The "official" source of CAS Registry Numbers is the Registry Handbook.
		When you find a Registry Number for a substance, you should check it against this volume to be certain that you are using a valid number.
	www.libraries.psu.edu /instruction/chem400/ccmodules/cas.htm (646 words)

	Phone Append - CAS
		CAS uses a single file made up of multiple national databases to provide the best phone numbers and information available.
		CAS Phone Append reports include a state-by-state report with the numbers of records searched and found.
		CAS confidence codes allow the client to tailor the quantities and quality of the telephone numbers returned.
	www.cas-online.com /products/phoneappend.htm (174 words)

	Chemistry: WebElements Periodic Table : Periodic properties : CAS Registry number: Definition
		The last digit is a check-digit to which helps to ensure that any given CAS number is authentic.
		The way to check whether the CAS number is authentic is as follows.
		The last digit of the CAS registry number matches the units digit in the number 60, so the number is legal.
	www.webelements.com /webelements/properties/text/definitions/cas.html (306 words)

	File 6: "NTIS - National Technical Information Service" Report Number (RN=) and CAS Registry Number (RN=)
		Report Numbers are often identified by numbers that begin with an alphabetic prefix which identifies the source of the document.
		The document numbers that follow the prefix may be provided in a variety of formats, and may or may not include hyphens, spaces, slashes, or other punctuation.
		All report numbers are cascaded to the initial alphabetic character string (all letters preceding the first hyphen, slash, space, or number) so that numbers from a specific agency can be retrieved with a single SELECT.
	support.dialog.com /searchaids/dialog/f6_rn.shtml (842 words)

	About ChemFinder.Com: Glossary
		ACX Numbers can also be extended to point to physical material, and may contain information relating to the vendor, quality, and package size.
		ChemFinder.Com displays the substance portion of the ACX Number, which is an abstract representation of the physical substance.
		CAS Registry Numbers are assigned to every uniquely-identifiable substance, so 'cis-2-hexene', 'trans-2-hexene', and '2-hexene' (a mixture with unspecified cis/trans composition) are all assigned separate CAS Numbers.
	chemfinder.cambridgesoft.com /about/chemfinder/glossary.asp (727 words)

	CBE 459: Senior Design Project - Identifying Chemical Compounds
		CAS Registry Numbers (a chemical's "Social Security number:" a unique number assigned to exactly one compound) or molecular formulae.
		The compounds are arranged numerically by CAS Number, and the source has a name index and a formula index.
		Entries include names and a short list of synonyms, CAS Numbers, formulae, structural representations, references to the compound in the print Beilstein Handbuch or the Merck Index, melting point or boiling point, density (when applicable), solubilities, and spectral peaks for mass spectra, infrared spectra, Raman spectra, and proton NMR.
	gethelp.library.upenn.edu /guides/engineering/cbe/cheme-identification.html (816 words)

	Registry Numbers
		CAS has assigned over 25 million registry numbers for chemical substances since 1965.
		It is a sequential accession number from the CAS Registry database, and carries no chemical or structural meaning in itself -- it is simply an identifying number for a specific substance that CAS has registered.
		See the CAS Registry System to learn more about Registry Numbers and their importance.
	www.lib.utexas.edu /chem/info/rn.html (202 words)

	Guidelines for the Notification and Testing of New Substances - Chemicals and Polymers - Appendix 4 (Site not responding. Last check: 2007-11-06)
		A dagger (†) after the CAS Registry Number indicates that additional descriptive information necessary for unambiguous identification of the substance is provided in the Chemical Substance Definitions section found in Volume I; this information should be reviewed to ensure accurate verification.
		CAS Registry Numbers for chemical substances can be identified by searching this File using molecular formulas, substructures, or a variety of chemical dictionary terms such as chemical names or name fragments.
		CAS Registry Numbers have been included in the monographs for many of the CTFA Adopted Names and are included in a numerical listing in Section VIII of this dictionary.
	www.ec.gc.ca /Substances/nsb/cpguide/eng/cp_x4_e.htm (1666 words)

	How to Find CAS Registry Numbers for Chemical Compounds
		Each individual chemical substance is assigned a CAS Registry Number which may be thought of as that substance's "Social Security number." The rules of chemical nomenclature frequently change and each chemical substance is liable to have several names: i.e.
		CAS registry numbers are found in several print and electronic sources.
		This is because the registry number could represent some other form of the compound; e.g., stereoisomer, salt, or an incompletely defined form, than the one you want.
	library.humboldt.edu /~chadwick/casregno.htm (1854 words)

	Genium Publishing Corporation \| Training
		In other words, if you enter benz in the Material Name field of the form, and 1332-21-4 in the CAS Number field, the search will return all materials whose name includes benz or whose CAS number is 1332-21-4.
		CAS number verification CAS numbers are constructed in such a way that the validity of a CAS number can be checked.
		If the number is not a valid CAS number, the search engine will display an error message.
	www.genium.com /training/searchingtips.shtml (138 words)

	The MSDS HyperGlossary: CAS Number
		That CAS number will appear on containers of anhydrous hydrogen chloride, a 20% solution of HCl in water, and a 2.0 molar solution of HCl in diethyl ether.
		The numbers you see on trucks on the highway are not CAS Numbers, but U.S. Department of Transportation (DOT) mandated UN/NA codes which are not necessarily specific to each chemical.
		Filing chemicals by CAS number is one way to avoid the problem of finding an MSDS by name ("did I file that under dichloromethane or methylene chloride??").
	www.ilpi.com /msds/ref/cas.html (480 words)

	Chemical and Physical Properties Search Page
		General Searching Instructions -- In brief, you should simply fill in the CAS number for the compound you want to search over, then press the Submit button.
		If you don't know the CAS number for the compound, you may search the CAS number first with chemical name.
		Otherwise, you may just enter "trichloro" to get CAS numbers for all compounds with chemical names containing "trichloro", such as "Trichloroethane, 1,1,1-", "Trichloroethylene", "Trichlorophenol, 2,4,5-", "Fluorotrichloromethane", etc. The CAS numbers should be entered with "nnnnnn-nn-n" format, such as "15950-66-0".
	www.dep.state.pa.us /physicalproperties/CPP_Search.htm (322 words)

	Water Pollution by Substance
		You must enter a pollutant's chemical name or CAS Registry Number -- or choose one of the pollutant types from the list.
		Enter the CAS Registry Number of the substance, for example, 1684-40-8.
		Be sure to enter the exact number, with all hyphens in place.
	www.dialogselect.com /energy/forms/EnergyWaterPollution.html (157 words)

	CAS REGISTRY Overview
		The CAS REGISTRY mostly covers substances identified from the scientific literature from 1957 to the present with some classes (fluorine- and silicon-containing compounds) going back to the early 1900s.
		A CAS Registry Number is assigned to a substance when it enters the CAS REGISTRY database.
		A CAS Registry Number, however, is unique and specific to only one substance regardless of how many other ways the substance can be described.
	www.cas.org /EO/regsys.html (440 words)

	List of WHMIS products by CAS number (Site not responding. Last check: 2007-11-06)
		This list containing a large number of CAS numbers, that is to say 3108, these are distributed according to the first part of this number.
		You can press the different ranges of CAS numbers to acceed to the lists of products.
		Note that if you press "All", the page may take a while to appear regarding the number of products.
	www.reptox.csst.qc.ca /Documents/SIMDUT/CasAng/Htm/CasAng.htm (199 words)

	J.T.Baker : MSDS
		If you already know the Baker 4 digit product number, entering the number and clicking on the submit button will take you directly to that product listing in the catalog.
		CAS numbers start with several digits, then a dash, then two digits, then a dash and finally the last digit.
		Entering a number in this format will find the product with that CAS number.
	www.jtbaker.com /europe/msds (167 words)

	CAS Operator Number Request (Site not responding. Last check: 2007-11-06)
		New employees in certain offices may require access to the CAS administrative system.
		After completing the form and reading the FERPA information, send the form to each of the functional offices where you are requesting trancodes from.
		After the sheet has received all of the necessary approvals, it should be forwarded to Wing 103 where a new operator number will be completed.
	www.uwlax.edu /ITSSupport/Enterprise/oprequest.htm (147 words)

	CAS Number Search
		CAS registry numbers are copyrighted by the American Chemical Society.
		Redistribution rights for CAS registry numbers are reserved by the American Chemical Society.
		“CAS registry” is a registered trademark of the American Chemical society.
	webbook.nist.gov /chemistry/cas-ser.html (89 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		RTK Substance Number: unique identification number assigned by the Right to Know Program to each chemical.
		CAS Number: number assigned by the Chemical Abstracts Service and used universally to identify the chemical.
		Please note: the prefixes alpha-, beta-, n-, o-, p-, and numbers (2-; 1,2-) should not be used when searching for a substance.
	www.state.nj.us /health/eoh/odisweb/ca_hsfs.htm (540 words)

	MSDS Inquiry - by CAS Number (Site not responding. Last check: 2007-11-06)
		Please enter a Chemical Abstract (CAS) Number to search by.
		For example, "78-96-6" and "108-95-2" are valid CAS Numbers.
		A list of chemicals that contain this CAS Number will be displayed.
	suaa.syr.edu /msds/cas_number.html (31 words)

	Chemical Research: Preparations (Site not responding. Last check: 2007-11-06)
		Note: There is a charge for titles from certain sources; see price list.
		You must enter either a chemical name or the CAS Registry Number for the substance.
		Article citations about the preparation of chemical substances from CAS (Chemical Abstracts Service), covering over 13 million documents in all areas of chemical research.
	www.dialogselect.com /chem/forms/ChemSubstancePrep.html (149 words)

	Chemical Literature Course, Assignment 1 Answers
		The examples below do not include print sources not listed in the lecture notes, since there are a vast number of possibilities for each, but do cover all the relevant sources from the notes.
		Note: AZT is too recently synthesized a compound to appear in the print version of Beilstein, though it does appear in the electronic versions..
		Listed under "Chlorotrimethylstannane"; the listing gives the CAS Registry Number, mol, wt., mp, bp, solubility, handling information and descriptions of uses in organic synthesis with examples and extensive references.
	www.library.ucsb.edu /classes/chem184/184sama2.html (648 words)

	STN Easy Search Example: Locating CAS Registry Numbers (Site not responding. Last check: 2007-11-06)
		To open an STN Easy account, click the blue "Open New Account" button and complete the form.
		STN Easy locates L-lysine in the CAS Registry database.
		The Registry record includes the CAS Registry Number.
	stneasy.cas.org /easy5/regis.html (221 words)

	UCLA Library News for the Faculty: Volume 15 Number 2 Spring 2000
		More than 22 million chemical substances can be searched by chemical name, chemical structure, CAS Registry Number®, and formula.
		Users are asked to logout after completing their searches because UCLA shares a limited number of ports with other UC campuses.
		The World Wide Web has caused a number of faculty to reexamine what they are doing in the classroom.
	www.library.ucla.edu /publications/facnews/pastissues/v15n2.html (2545 words)

	Chem-Impex International Inc. (Site not responding. Last check: 2007-11-06)
		A) If the user knows the Product Number, This is the easiest way of searching a product.
		Eg: Enter 522 and all the products having the number 522 in their CAS Number will be listed.
		Lot Number on the Certificate of Analysis page or he can Search for a Particular products using the search criterias
	www.chemimpex.com /help.asp (419 words)

	Search for Chemical Ingredient by Chemical Code or CAS Number (Site not responding. Last check: 2007-11-06)
		This query yields a list of chemical ingredient names that meets the criteria you specify below.
		CAS number is a numeric designation given to a specific chemical
		Enter a full or partial CAS number, with or without the dashes.
	www.cdpr.ca.gov /docs/monster/monster2.htm (90 words)

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