The CAS Registry Mumber 106008-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,0,0 and 8 respectively; the second part has 2 digits, 1 and 9 respectively. Calculate Digit Verification of CAS Registry Number 106008-19: (8*1)+(7*0)+(6*6)+(5*0)+(4*0)+(3*8)+(2*1)+(1*9)=79 79 % 10 = 9 So 106008-19-9 is a valid CAS Registry Number.
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