1231947-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1231947-89-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,9,4 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1231947-89:
(9*1)+(8*2)+(7*3)+(6*1)+(5*9)+(4*4)+(3*7)+(2*8)+(1*9)=159
159 % 10 = 9
So 1231947-89-9 is a valid CAS Registry Number.
1231947-89-9Relevant articles and documents
NOVEL PROCESS FOR THE PREPARATION OF PIPERAZINE COMPOUNDS AND HYDROCHLORIDE SALTS THEREOF
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Page/Page column 8, (2011/07/07)
The invention relates to a new process for the preparation of compounds of general formula (I) wherein R1 and R2 represent independently hydrogen or C1-6 alkyl with straight or branched chain optionally substituted with ar