The CAS Registry Mumber 195131-57-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,1,3 and 1 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 195131-57: (8*1)+(7*9)+(6*5)+(5*1)+(4*3)+(3*1)+(2*5)+(1*7)=138 138 % 10 = 8 So 195131-57-8 is a valid CAS Registry Number.
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2-methyl-2-[4-[2-[[(phenylmethoxy)carbonyl]amino]ethyl]phenoxy]-