113561-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113561-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,5,6 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113561-91:
(8*1)+(7*1)+(6*3)+(5*5)+(4*6)+(3*1)+(2*9)+(1*1)=104
104 % 10 = 4
So 113561-91-4 is a valid CAS Registry Number.