The CAS Registry Mumber 63064-72-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,0,6 and 4 respectively; the second part has 2 digits, 7 and 2 respectively. Calculate Digit Verification of CAS Registry Number 63064-72: (7*6)+(6*3)+(5*0)+(4*6)+(3*4)+(2*7)+(1*2)=112 112 % 10 = 2 So 63064-72-2 is a valid CAS Registry Number.
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