561-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 561-34-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,6 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 561-34:
(5*5)+(4*6)+(3*1)+(2*3)+(1*4)=62
62 % 10 = 2
So 561-34-2 is a valid CAS Registry Number.