The CAS Registry Mumber 127510-73-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,5,1 and 0 respectively; the second part has 2 digits, 7 and 3 respectively. Calculate Digit Verification of CAS Registry Number 127510-73: (8*1)+(7*2)+(6*7)+(5*5)+(4*1)+(3*0)+(2*7)+(1*3)=110 110 % 10 = 0 So 127510-73-0 is a valid CAS Registry Number.
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