The CAS Registry Mumber 111210-46-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,2,1 and 0 respectively; the second part has 2 digits, 4 and 6 respectively. Calculate Digit Verification of CAS Registry Number 111210-46: (8*1)+(7*1)+(6*1)+(5*2)+(4*1)+(3*0)+(2*4)+(1*6)=49 49 % 10 = 9 So 111210-46-9 is a valid CAS Registry Number.
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