4281-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4281-61-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4281-61:
(6*4)+(5*2)+(4*8)+(3*1)+(2*6)+(1*1)=82
82 % 10 = 2
So 4281-61-2 is a valid CAS Registry Number.