1253056-11-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1253056-11-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,3,0,5 and 6 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1253056-11:
(9*1)+(8*2)+(7*5)+(6*3)+(5*0)+(4*5)+(3*6)+(2*1)+(1*1)=119
119 % 10 = 9
So 1253056-11-9 is a valid CAS Registry Number.
1253056-11-9Relevant articles and documents
PROCESS FOR THE PREPARATION OF SITAGLIPTIN AND ITS INTERMEDIATES
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Page/Page column 64, (2010/11/05)
The present invention relates to novel and improved processes for the preparation of Sitagliptin compound of formula (1) and its intermediates.