85658-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 85658-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,6,5 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 85658-04:
(7*8)+(6*5)+(5*6)+(4*5)+(3*8)+(2*0)+(1*4)=164
164 % 10 = 4
So 85658-04-4 is a valid CAS Registry Number.