89901-07-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89901-07-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,0 and 1 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89901-07:
(7*8)+(6*9)+(5*9)+(4*0)+(3*1)+(2*0)+(1*7)=165
165 % 10 = 5
So 89901-07-5 is a valid CAS Registry Number.