299443-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299443-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,4,4 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 299443-17:
(8*2)+(7*9)+(6*9)+(5*4)+(4*4)+(3*3)+(2*1)+(1*7)=187
187 % 10 = 7
So 299443-17-7 is a valid CAS Registry Number.