111638-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111638-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,6,3 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 111638-16:
(8*1)+(7*1)+(6*1)+(5*6)+(4*3)+(3*8)+(2*1)+(1*6)=95
95 % 10 = 5
So 111638-16-5 is a valid CAS Registry Number.