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Chemistry and Physics

This is a resource for research in the Chemistry and Physics fields of study.

CAS Registry Numbers

CAS Registry Numbers are unique numerical identifiers assigned by the "Chemical Abstracts Service" to every chemical described in the open scientific literature (from 1957 through the present) and including elements, isotopes, organic and inorganic compounds, organometallics, metals, alloys, coordination compounds, minerals, and salts; as well as standard mixtures, compounds, polymers; biological sequences including proteins & nucleic acids; nuclear particles, and nonstructurable materials (aka 'UVCB's- i.e., materials of Unknown, Variable Composition, or Biological origin). They are also referred to as CAS RNs, CAS Numbers.

Science Daily - Geochemistry News

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Online Reference Sources

Web Resources : General Science

PLoS ONE : Chemistry

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News from EurekAlert!

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