5772-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5772-21-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5772-21:
(6*5)+(5*7)+(4*7)+(3*2)+(2*2)+(1*1)=104
104 % 10 = 4
So 5772-21-4 is a valid CAS Registry Number.