418754-81-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 418754-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,8,7,5 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 418754-81:
(8*4)+(7*1)+(6*8)+(5*7)+(4*5)+(3*4)+(2*8)+(1*1)=171
171 % 10 = 1
So 418754-81-1 is a valid CAS Registry Number.
418754-81-1Relevant academic research and scientific papers
Novel compounds
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Page 13-14, (2010/02/07)
The invention provides thieno[2,3-d]pyrimidinediones of general formula wherein R, R1, R2 and R3 are as defined in the specification, processes for their production, pharmaceutical compositions containing them and their us