28372-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28372-21-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,3,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28372-21:
(7*2)+(6*8)+(5*3)+(4*7)+(3*2)+(2*2)+(1*1)=116
116 % 10 = 6
So 28372-21-6 is a valid CAS Registry Number.