49-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 49-61-6 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 4 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 49-61:
(4*4)+(3*9)+(2*6)+(1*1)=56
56 % 10 = 6
So 49-61-6 is a valid CAS Registry Number.