227938-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 227938-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,7,9,3 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 227938-80:
(8*2)+(7*2)+(6*7)+(5*9)+(4*3)+(3*8)+(2*8)+(1*0)=169
169 % 10 = 9
So 227938-80-9 is a valid CAS Registry Number.