685537-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685537-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,5,3 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 685537-42:
(8*6)+(7*8)+(6*5)+(5*5)+(4*3)+(3*7)+(2*4)+(1*2)=202
202 % 10 = 2
So 685537-42-2 is a valid CAS Registry Number.