111561-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111561-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,5,6 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 111561-55:
(8*1)+(7*1)+(6*1)+(5*5)+(4*6)+(3*1)+(2*5)+(1*5)=88
88 % 10 = 8
So 111561-55-8 is a valid CAS Registry Number.