1276540-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1276540-81-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,6,5,4 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1276540-81:
(9*1)+(8*2)+(7*7)+(6*6)+(5*5)+(4*4)+(3*0)+(2*8)+(1*1)=168
168 % 10 = 8
So 1276540-81-8 is a valid CAS Registry Number.
1276540-81-8Relevant articles and documents
SYNTHESIS OF (4-FLUORO-3-PIPERIDIN-4-YL-BENZYL)-CARBAMIC ACID TERT-BUTYL ESTER AND INTERMEDIATES THEREOF
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, (2011/04/24)
The present invention is an improved method for the preparation of 4-fluoro-3-piperidin-4-yl-benzyl)-carbamic acid tert-butyl ester, compound of formula I. The invention is directed to a method of synthesis for the compound of formula I in three steps, co