198699-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198699-83-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,6,9 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 198699-83:
(8*1)+(7*9)+(6*8)+(5*6)+(4*9)+(3*9)+(2*8)+(1*3)=231
231 % 10 = 1
So 198699-83-1 is a valid CAS Registry Number.