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202057-76-9

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202057-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202057-76-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,0,5 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 202057-76:
(8*2)+(7*0)+(6*2)+(5*0)+(4*5)+(3*7)+(2*7)+(1*6)=89
89 % 10 = 9
So 202057-76-9 is a valid CAS Registry Number.

202057-76-9Downstream Products

202057-76-9Relevant articles and documents

PROCESS FOR PRODUCTION OF 2-CYANO-3-HYDROXY-N-(4-TRI- FLUOROMETHYLPHENYL)HEPT-2-EN-6-YNAMIDE AND PROCESS FOR PRODUCTION OF POLYMORPHS THEREOF

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Page/Page column 5; 9-10, (2010/02/15)

A compound (II) is reacted with a compound (III) or a reactive derivative at the carboxyl group thereof to obtain a compound (IV), which is reacted with a mixed acid anhydride of a compound (V) to prepare a compound (I). In recrystallization of the compou

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