21427-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21427-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,2 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21427-72:
(7*2)+(6*1)+(5*4)+(4*2)+(3*7)+(2*7)+(1*2)=85
85 % 10 = 5
So 21427-72-5 is a valid CAS Registry Number.