199678-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199678-68-7 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 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 199678-68:
(8*1)+(7*9)+(6*9)+(5*6)+(4*7)+(3*8)+(2*6)+(1*8)=227
227 % 10 = 7
So 199678-68-7 is a valid CAS Registry Number.