4941-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4941-81-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,4 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4941-81:
(6*4)+(5*9)+(4*4)+(3*1)+(2*8)+(1*1)=105
105 % 10 = 5
So 4941-81-5 is a valid CAS Registry Number.