The CAS Registry Mumber 33892-17-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,9 and 2 respectively; the second part has 2 digits, 1 and 7 respectively. Calculate Digit Verification of CAS Registry Number 33892-17: (7*3)+(6*3)+(5*8)+(4*9)+(3*2)+(2*1)+(1*7)=130 130 % 10 = 0 So 33892-17-0 is a valid CAS Registry Number.
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