The CAS Registry Mumber 194595-69-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,5,9 and 5 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 194595-69: (8*1)+(7*9)+(6*4)+(5*5)+(4*9)+(3*5)+(2*6)+(1*9)=192 192 % 10 = 2 So 194595-69-2 is a valid CAS Registry Number.
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