228271-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 228271-76-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,2,7 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 228271-76:
(8*2)+(7*2)+(6*8)+(5*2)+(4*7)+(3*1)+(2*7)+(1*6)=139
139 % 10 = 9
So 228271-76-9 is a valid CAS Registry Number.