The CAS Registry Mumber 95690-54-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,6,9 and 0 respectively; the second part has 2 digits, 5 and 4 respectively. Calculate Digit Verification of CAS Registry Number 95690-54: (7*9)+(6*5)+(5*6)+(4*9)+(3*0)+(2*5)+(1*4)=173 173 % 10 = 3 So 95690-54-3 is a valid CAS Registry Number.
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