28371-18-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28371-18-8 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 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28371-18:
(7*2)+(6*8)+(5*3)+(4*7)+(3*1)+(2*1)+(1*8)=118
118 % 10 = 8
So 28371-18-8 is a valid CAS Registry Number.