142220-65-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142220-65-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,2,2 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 142220-65:
(8*1)+(7*4)+(6*2)+(5*2)+(4*2)+(3*0)+(2*6)+(1*5)=83
83 % 10 = 3
So 142220-65-3 is a valid CAS Registry Number.
142220-65-3Relevant articles and documents
Pyrimidine derivatives and drugs
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, (2008/06/13)
The object of the present invention is to obtain new class of compounds which have improving effect on learning and memory disorders with good selectivity in central nervous system and little side effects and then to provide a good medicine for treatment