16405-84-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16405-84-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,0 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 16405-84:
(7*1)+(6*6)+(5*4)+(4*0)+(3*5)+(2*8)+(1*4)=98
98 % 10 = 8
So 16405-84-8 is a valid CAS Registry Number.