299945-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299945-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,4 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 299945-71:
(8*2)+(7*9)+(6*9)+(5*9)+(4*4)+(3*5)+(2*7)+(1*1)=224
224 % 10 = 4
So 299945-71-4 is a valid CAS Registry Number.