10291-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10291-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,2,9 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 10291-89:
(7*1)+(6*0)+(5*2)+(4*9)+(3*1)+(2*8)+(1*9)=81
81 % 10 = 1
So 10291-89-1 is a valid CAS Registry Number.