331767-52-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331767-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,7,6 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 331767-52:
(8*3)+(7*3)+(6*1)+(5*7)+(4*6)+(3*7)+(2*5)+(1*2)=143
143 % 10 = 3
So 331767-52-3 is a valid CAS Registry Number.
331767-52-3Relevant articles and documents
Substituted piperazine derivatives, the preparation thereof and their use as medicaments
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, (2008/06/13)
The present invention relates to substituted piperazine derivatives of general formula wherein Ra, Rb, RcRf, Rgand m, n and X are defined as in claim 1, the isomers and salts thereof, particularly the