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CAS Numbers Assigning to Raw Materials
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Web cas numbers are unique identifiers for chemical compounds, up to 10 digits long, assigned by the chemical abstract. Each cas registry number ® (cas rn ®) identifier: Web a cas registry number is a unique and unambiguous identifier for a specific substance that allows clear. Web what is a cas registry number (cas rn)? Is a unique numeric identifier;. Web cas numbers are unique identifiers for chemical compounds, up to 10 digits long, assigned by the chemical abstract.
