298683-77-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 298683-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,8,6,8 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 298683-77:
(8*2)+(7*9)+(6*8)+(5*6)+(4*8)+(3*3)+(2*7)+(1*7)=219
219 % 10 = 9
So 298683-77-9 is a valid CAS Registry Number.