299453-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299453-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,4,5 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 299453-49:
(8*2)+(7*9)+(6*9)+(5*4)+(4*5)+(3*3)+(2*4)+(1*9)=199
199 % 10 = 9
So 299453-49-9 is a valid CAS Registry Number.