1289557-49-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1289557-49-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,5,5 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1289557-49:
(9*1)+(8*2)+(7*8)+(6*9)+(5*5)+(4*5)+(3*7)+(2*4)+(1*9)=218
218 % 10 = 8
So 1289557-49-8 is a valid CAS Registry Number.