169899-25-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169899-25-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,8,9 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 169899-25:
(8*1)+(7*6)+(6*9)+(5*8)+(4*9)+(3*9)+(2*2)+(1*5)=216
216 % 10 = 6
So 169899-25-6 is a valid CAS Registry Number.