220821-38-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220821-38-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,8,2 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 220821-38:
(8*2)+(7*2)+(6*0)+(5*8)+(4*2)+(3*1)+(2*3)+(1*8)=95
95 % 10 = 5
So 220821-38-5 is a valid CAS Registry Number.
220821-38-5Relevant articles and documents
Thienopyridine derivatives, their intermediates and production thereof
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, (2008/06/13)
The present invention provides an intermediate for producing a thienopyridine derivative useful as a GnRH antagonist as well as an efficient and safe method for producing the same in an industrial scale at a high yield.