The CAS Registry Mumber 350042-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,5,0,0,4 and 2 respectively; the second part has 2 digits, 1 and 9 respectively. Calculate Digit Verification of CAS Registry Number 350042-19: (8*3)+(7*5)+(6*0)+(5*0)+(4*4)+(3*2)+(2*1)+(1*9)=92 92 % 10 = 2 So 350042-19-2 is a valid CAS Registry Number.
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