5576-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5576-21-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,7 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5576-21:
(6*5)+(5*5)+(4*7)+(3*6)+(2*2)+(1*1)=106
106 % 10 = 6
So 5576-21-6 is a valid CAS Registry Number.