170989-00-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 170989-00-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,9,8 and 9 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 170989-00:
(8*1)+(7*7)+(6*0)+(5*9)+(4*8)+(3*9)+(2*0)+(1*0)=161
161 % 10 = 1
So 170989-00-1 is a valid CAS Registry Number.