199679-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199679-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,6,7 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 199679-80:
(8*1)+(7*9)+(6*9)+(5*6)+(4*7)+(3*9)+(2*8)+(1*0)=226
226 % 10 = 6
So 199679-80-6 is a valid CAS Registry Number.