103394-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103394-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,3,9 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 103394-72:
(8*1)+(7*0)+(6*3)+(5*3)+(4*9)+(3*4)+(2*7)+(1*2)=105
105 % 10 = 5
So 103394-72-5 is a valid CAS Registry Number.