654682-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 654682-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,4,6,8 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 654682-89:
(8*6)+(7*5)+(6*4)+(5*6)+(4*8)+(3*2)+(2*8)+(1*9)=200
200 % 10 = 0
So 654682-89-0 is a valid CAS Registry Number.