99056-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99056-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,0,5 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99056-09:
(7*9)+(6*9)+(5*0)+(4*5)+(3*6)+(2*0)+(1*9)=164
164 % 10 = 4
So 99056-09-4 is a valid CAS Registry Number.