99839-94-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99839-94-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,3 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99839-94:
(7*9)+(6*9)+(5*8)+(4*3)+(3*9)+(2*9)+(1*4)=218
218 % 10 = 8
So 99839-94-8 is a valid CAS Registry Number.