881589-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 881589-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,1,5,8 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 881589-91:
(8*8)+(7*8)+(6*1)+(5*5)+(4*8)+(3*9)+(2*9)+(1*1)=229
229 % 10 = 9
So 881589-91-9 is a valid CAS Registry Number.