The CAS Registry Mumber 1292294-28-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,2,2,9 and 4 respectively; the second part has 2 digits, 2 and 8 respectively. Calculate Digit Verification of CAS Registry Number 1292294-28: (9*1)+(8*2)+(7*9)+(6*2)+(5*2)+(4*9)+(3*4)+(2*2)+(1*8)=170 170 % 10 = 0 So 1292294-28-0 is a valid CAS Registry Number.
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