The CAS Registry Mumber 92218-35-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,2,1 and 8 respectively; the second part has 2 digits, 3 and 5 respectively. Calculate Digit Verification of CAS Registry Number 92218-35: (7*9)+(6*2)+(5*2)+(4*1)+(3*8)+(2*3)+(1*5)=124 124 % 10 = 4 So 92218-35-4 is a valid CAS Registry Number.
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