The CAS Registry Mumber 49848-69-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,8,4 and 8 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 49848-69: (7*4)+(6*9)+(5*8)+(4*4)+(3*8)+(2*6)+(1*9)=183 183 % 10 = 3 So 49848-69-3 is a valid CAS Registry Number.
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