681845-89-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 681845-89-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,8,4 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 681845-89:
(8*6)+(7*8)+(6*1)+(5*8)+(4*4)+(3*5)+(2*8)+(1*9)=206
206 % 10 = 6
So 681845-89-6 is a valid CAS Registry Number.