The CAS Registry Mumber 250127-11-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,1,2 and 7 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 250127-11: (8*2)+(7*5)+(6*0)+(5*1)+(4*2)+(3*7)+(2*1)+(1*1)=88 88 % 10 = 8 So 250127-11-8 is a valid CAS Registry Number.
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