228710-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 228710-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,8,7,1 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 228710-73:
(8*2)+(7*2)+(6*8)+(5*7)+(4*1)+(3*0)+(2*7)+(1*3)=134
134 % 10 = 4
So 228710-73-4 is a valid CAS Registry Number.