299934-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299934-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,3 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 299934-80:
(8*2)+(7*9)+(6*9)+(5*9)+(4*3)+(3*4)+(2*8)+(1*0)=218
218 % 10 = 8
So 299934-80-8 is a valid CAS Registry Number.