The CAS Registry Mumber 68020-88-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,0,2 and 0 respectively; the second part has 2 digits, 8 and 8 respectively. Calculate Digit Verification of CAS Registry Number 68020-88: (7*6)+(6*8)+(5*0)+(4*2)+(3*0)+(2*8)+(1*8)=122 122 % 10 = 2 So 68020-88-2 is a valid CAS Registry Number.
Regioselective synthesis of 2-oxo-2,8-dihydro-[1,2,4]-oxadiazolo[2,3-a]pyrimidine-7-carbamates: A new class of antihypertensive peripheral vasodilators
Muller,Ramuz
, p. 1445 - 1453 (2007/10/02)
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