2049-41-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2049-41-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,4 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2049-41:
(6*2)+(5*0)+(4*4)+(3*9)+(2*4)+(1*1)=64
64 % 10 = 4
So 2049-41-4 is a valid CAS Registry Number.