2704-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2704-13-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,0 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2704-13:
(6*2)+(5*7)+(4*0)+(3*4)+(2*1)+(1*3)=64
64 % 10 = 4
So 2704-13-4 is a valid CAS Registry Number.