99858-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99858-56-7 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, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 99858-56:
(7*9)+(6*9)+(5*8)+(4*5)+(3*8)+(2*5)+(1*6)=217
217 % 10 = 7
So 99858-56-7 is a valid CAS Registry Number.