The CAS Registry Mumber 157299-02-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,2,9 and 9 respectively; the second part has 2 digits, 0 and 2 respectively. Calculate Digit Verification of CAS Registry Number 157299-02: (8*1)+(7*5)+(6*7)+(5*2)+(4*9)+(3*9)+(2*0)+(1*2)=160 160 % 10 = 0 So 157299-02-0 is a valid CAS Registry Number.
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