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CAS REGISTRY and CAS Registry Number FAQs |
A CAS Registry Number is a numeric identifier that can contain up to 10 digits, divided by hyphens into three parts. The right-most digit is a check digit used to verify the validity and uniqueness of the entire number. For example, 58-08-2 is the CAS Registry Number for caffeine.
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What Is a CAS Number and How Is It Assigned?
The CAS Number of a compound is a useful way to identify a chemical over its name. For example, the compound CAS 64-17-5 refers to ethanol. Ethanol is also known as ethyl alcohol, ethyl hydrate, absolute alcohol, grain alcohol or hydroxyethane.
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CAS Registry Number
The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 158 million unique organic and inorganic substances and 67 million protein and DNA sequences, plus additional information about each substance. It is updated with around 15,000 additional new substances daily.
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List of CAS numbers | Chemical Synthesis Database
Cas Number: 78799-91-4 ; EINECS Number:-methyl stearate. Molecular Formula: C 19 H 38 O 2; Molecular Weight: 298.51 g/mol; Cas Number: 112-61-8 ; EINECS Number: 203-990-4; 1H-pyrrole-2,4-dicarbonitrile. Molecular Formula: C 6 H 3 N 3; Molecular Weight: 117.11 g/mol; Cas Number: 74023-87-3 ; EINECS Number:-
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CAS Number Search | Where to Buy Chemicals
Additional CAS filter options appear under search field. NOTE you can also perform any CAS number search (full or part) directly into the Advanced Filter Search bar on home page Search CAS numbers starting with Search CAS numbers anywhere in CAS Number
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The MSDS HyperGlossary: CAS Number
Definition. A CAS (Chemical Abstracts Service) Registry Number is a unique identifier that tells you, for example, that acetone and dimethyl ketone are actually the same substance. From a safety and inventory perspective, this is a terrific idea. As of 2018, there were 137,000,000 unique chemical substances indexed by CAS as well as 67,000,000...
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CAS Registry Number - Search Chemical Names and
Welcome to Common Chemistry ™ from Chemical Abstracts Service (CAS), a web resource that contains CAS Registry Numbers for approximately 7,900 chemicals of widespread general public interest. Common Chemistry is helpful to non-chemists who know either a name or CAS Registry Number ® of a common chemical and want to pair both pieces of information.
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CAS # | MSDSonline
CAS # A Chemical Abstracts Service Registry Number is a unique identifier that tells you, for example, that acetone and dimethyl ketone are actually the same substance. Chat with us , powered by LiveChat
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A. CAS Registry Numbers (often referred to as CAS RN ® or CAS Numbers) are universally used to provide a unique, unmistakable identifier for chemical substances. A CAS Registry Number itself has no inherent chemical significance but provides an unambiguous way to identify a chemical substance or molecular structure when there are many possible systematic, generic, proprietary or trivial names.
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List of CAS numbers by chemical compound
This is a list of CAS numbers by chemical formulas and chemical compounds, indexed by formula.This complements alternative listings to be found at list of inorganic compounds, list of organic compounds and inorganic compounds by element
Send InquiryCAS REGISTRY and CAS Registry Number FAQs |
A CAS Registry Number is a numeric identifier that can contain up to 10 digits, divided by hyphens into three parts. The right-most digit is a check digit used to verify the validity and uniqueness of the entire number. For example, 58-08-2 is the CAS Registry Number for caffeine.
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CAS Number Search | Where to Buy Chemicals
Additional CAS filter options appear under search field. NOTE you can also perform any CAS number search (full or part) directly into the Advanced Filter Search bar on home page Search CAS numbers starting with Search CAS numbers anywhere in CAS Number
Send InquiryWhat is a CAS Registry Number (CASRN)? - Definition from
CAS Numbers are divided into three parts by hyphens, and contain up to ten digits. The first part of the number ranges from two to seven digits, the second part contains two digits, and third part is a single check digit. Chemical substances are given CAS numbers in sequential order as they are added to the CAS Registry database.
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CAS_registry_number - chemeurope.com
Almost all molecule databases today allow searching by CAS number. As of October 2007, there were 32,813,596 organic and inorganic substances and 59,404,558 sequences in the CAS registry. Around 50,000 new numbers are added each week. CAS also maintains and sells a database of these chemicals, known as the CAS registry.
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What Is a CAS Number and How Is It Assigned?
CAS Numbers. CAS Numbers are up to 10 digits long using the format xxxxxxx-yy-z. They are assigned to a compound as the CAS registers a new compound. The number has no significance to the chemistry, structure, or chemical nature of the molecule. The CAS Number of a compound is a useful way to identify a chemical over its name.
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What Is a CAS Number? » ICC Regulatory Blog
For example, “Methanol” is known by multiple names such as methyl alcohol, methyl hydrate, hydroxymethane and wood alcohol but this chemical can be identified as one specific substance using the CAS number, which is 67-56-1.
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CAS Number Search - Chemsrc
Chemsrc provides free CAS Number Search engine to fast access over millions chemical structures, CAS number, MSDS, properties and associated information.
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CAS Registry Numbers - Chemistry Research Guide - Research
Another systematic name for this same compound is 4'-Hydroxyacetanilide. There is just one CAS registry number which is 103-90-2. Even if other names are created for this compound, the registry number will remain unchanged. There is no structural significance to the registry number - it is simply an identifier.
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