The CAS Registry Mumber 3329-92-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,2 and 9 respectively; the second part has 2 digits, 9 and 2 respectively. Calculate Digit Verification of CAS Registry Number 3329-92: (6*3)+(5*3)+(4*2)+(3*9)+(2*9)+(1*2)=88 88 % 10 = 8 So 3329-92-8 is a valid CAS Registry Number.
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