945981-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 945981-89-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,5,9,8 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 945981-89:
(8*9)+(7*4)+(6*5)+(5*9)+(4*8)+(3*1)+(2*8)+(1*9)=235
235 % 10 = 5
So 945981-89-5 is a valid CAS Registry Number.