23041-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23041-21-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,4 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23041-21:
(7*2)+(6*3)+(5*0)+(4*4)+(3*1)+(2*2)+(1*1)=56
56 % 10 = 6
So 23041-21-6 is a valid CAS Registry Number.