6158-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6158-04-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,1,5 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6158-04:
(6*6)+(5*1)+(4*5)+(3*8)+(2*0)+(1*4)=89
89 % 10 = 9
So 6158-04-9 is a valid CAS Registry Number.