2999-13-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2999-13-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,9 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2999-13:
(6*2)+(5*9)+(4*9)+(3*9)+(2*1)+(1*3)=125
125 % 10 = 5
So 2999-13-5 is a valid CAS Registry Number.