103404-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103404-61-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,4,0 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 103404-61:
(8*1)+(7*0)+(6*3)+(5*4)+(4*0)+(3*4)+(2*6)+(1*1)=71
71 % 10 = 1
So 103404-61-1 is a valid CAS Registry Number.