405284-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 405284-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,2,8 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 405284-93:
(8*4)+(7*0)+(6*5)+(5*2)+(4*8)+(3*4)+(2*9)+(1*3)=137
137 % 10 = 7
So 405284-93-7 is a valid CAS Registry Number.