The CAS Registry Mumber 57334-08-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,3,3 and 4 respectively; the second part has 2 digits, 0 and 8 respectively. Calculate Digit Verification of CAS Registry Number 57334-08: (7*5)+(6*7)+(5*3)+(4*3)+(3*4)+(2*0)+(1*8)=124 124 % 10 = 4 So 57334-08-4 is a valid CAS Registry Number.
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