98778-43-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98778-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,7 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98778-43:
(7*9)+(6*8)+(5*7)+(4*7)+(3*8)+(2*4)+(1*3)=209
209 % 10 = 9
So 98778-43-9 is a valid CAS Registry Number.