299904-13-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299904-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,0 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 299904-13:
(8*2)+(7*9)+(6*9)+(5*9)+(4*0)+(3*4)+(2*1)+(1*3)=195
195 % 10 = 5
So 299904-13-5 is a valid CAS Registry Number.