457961-94-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 457961-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,9,6 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 457961-94:
(8*4)+(7*5)+(6*7)+(5*9)+(4*6)+(3*1)+(2*9)+(1*4)=203
203 % 10 = 3
So 457961-94-3 is a valid CAS Registry Number.
457961-94-3Relevant articles and documents
METHOD FOR PRODUCING 2-AZETIDINONE DERIVATIVE
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Page/Page column 7, (2008/06/13)
A process for producing a compound represented by the following formula (II) which comprises treating a compound represented by the following formula (I) (wherein R1, R2 and R3 represent each a specific substituent) with a