111831-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111831-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,8,3 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111831-93:
(8*1)+(7*1)+(6*1)+(5*8)+(4*3)+(3*1)+(2*9)+(1*3)=97
97 % 10 = 7
So 111831-93-7 is a valid CAS Registry Number.