146989-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 146989-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,9,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 146989-91:
(8*1)+(7*4)+(6*6)+(5*9)+(4*8)+(3*9)+(2*9)+(1*1)=195
195 % 10 = 5
So 146989-91-5 is a valid CAS Registry Number.