3402-26-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3402-26-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,0 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 3402-26:
(6*3)+(5*4)+(4*0)+(3*2)+(2*2)+(1*6)=54
54 % 10 = 4
So 3402-26-4 is a valid CAS Registry Number.