118540-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118540-49-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,5,4 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 118540-49:
(8*1)+(7*1)+(6*8)+(5*5)+(4*4)+(3*0)+(2*4)+(1*9)=121
121 % 10 = 1
So 118540-49-1 is a valid CAS Registry Number.