The CAS Registry Mumber 43230-92-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,2,3 and 0 respectively; the second part has 2 digits, 9 and 2 respectively. Calculate Digit Verification of CAS Registry Number 43230-92: (7*4)+(6*3)+(5*2)+(4*3)+(3*0)+(2*9)+(1*2)=88 88 % 10 = 8 So 43230-92-8 is a valid CAS Registry Number.
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