299171-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299171-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,1,7 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 299171-39:
(8*2)+(7*9)+(6*9)+(5*1)+(4*7)+(3*1)+(2*3)+(1*9)=184
184 % 10 = 4
So 299171-39-4 is a valid CAS Registry Number.