99858-38-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99858-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,5 and 8 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99858-38:
(7*9)+(6*9)+(5*8)+(4*5)+(3*8)+(2*3)+(1*8)=215
215 % 10 = 5
So 99858-38-5 is a valid CAS Registry Number.