409108-86-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 409108-86-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,9,1,0 and 8 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 409108-86:
(8*4)+(7*0)+(6*9)+(5*1)+(4*0)+(3*8)+(2*8)+(1*6)=137
137 % 10 = 7
So 409108-86-7 is a valid CAS Registry Number.