405938-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 405938-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,9,3 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 405938-98:
(8*4)+(7*0)+(6*5)+(5*9)+(4*3)+(3*8)+(2*9)+(1*8)=169
169 % 10 = 9
So 405938-98-9 is a valid CAS Registry Number.