685891-96-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685891-96-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,8,9 and 1 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 685891-96:
(8*6)+(7*8)+(6*5)+(5*8)+(4*9)+(3*1)+(2*9)+(1*6)=237
237 % 10 = 7
So 685891-96-7 is a valid CAS Registry Number.