21344-60-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21344-60-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,4 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21344-60:
(7*2)+(6*1)+(5*3)+(4*4)+(3*4)+(2*6)+(1*0)=75
75 % 10 = 5
So 21344-60-5 is a valid CAS Registry Number.