401-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 401-27-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,0 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 401-27:
(5*4)+(4*0)+(3*1)+(2*2)+(1*7)=34
34 % 10 = 4
So 401-27-4 is a valid CAS Registry Number.