206257-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206257-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,2,5 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 206257-64:
(8*2)+(7*0)+(6*6)+(5*2)+(4*5)+(3*7)+(2*6)+(1*4)=119
119 % 10 = 9
So 206257-64-9 is a valid CAS Registry Number.