The CAS Registry Mumber 70367-33-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,6 and 7 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 70367-33: (7*7)+(6*0)+(5*3)+(4*6)+(3*7)+(2*3)+(1*3)=118 118 % 10 = 8 So 70367-33-8 is a valid CAS Registry Number.
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