403805-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 403805-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,8,0 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 403805-91:
(8*4)+(7*0)+(6*3)+(5*8)+(4*0)+(3*5)+(2*9)+(1*1)=124
124 % 10 = 4
So 403805-91-4 is a valid CAS Registry Number.