3613-61-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3613-61-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,1 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3613-61:
(6*3)+(5*6)+(4*1)+(3*3)+(2*6)+(1*1)=74
74 % 10 = 4
So 3613-61-4 is a valid CAS Registry Number.