685564-43-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685564-43-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,5,6 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 685564-43:
(8*6)+(7*8)+(6*5)+(5*5)+(4*6)+(3*4)+(2*4)+(1*3)=206
206 % 10 = 6
So 685564-43-6 is a valid CAS Registry Number.