199728-64-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199728-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,2 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 199728-64:
(8*1)+(7*9)+(6*9)+(5*7)+(4*2)+(3*8)+(2*6)+(1*4)=208
208 % 10 = 8
So 199728-64-8 is a valid CAS Registry Number.