169798-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169798-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,7,9 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 169798-34:
(8*1)+(7*6)+(6*9)+(5*7)+(4*9)+(3*8)+(2*3)+(1*4)=209
209 % 10 = 9
So 169798-34-9 is a valid CAS Registry Number.