Query by Chemical Abstracts Search Registry Number (CASRN)

For best result, enter full Chemical Abstracts Search Registry Number (CASRN) with dashes. For example, "7439-97-6". For partial searches, prefix and suffix the search term with a %, ex: "%7439% to find all CASRN containing 7439. (CAS Registry Number® is a Registered Trademark of the American Chemical Society. CAS recommends the verification of the CASRNs through CAS Client ServicesSM.)

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