209725-84-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209725-84-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,7,2 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 209725-84:
(8*2)+(7*0)+(6*9)+(5*7)+(4*2)+(3*5)+(2*8)+(1*4)=148
148 % 10 = 8
So 209725-84-8 is a valid CAS Registry Number.