6458-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6458-09-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,5 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6458-09:
(6*6)+(5*4)+(4*5)+(3*8)+(2*0)+(1*9)=109
109 % 10 = 9
So 6458-09-9 is a valid CAS Registry Number.