103929-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103929-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,2 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 103929-53:
(8*1)+(7*0)+(6*3)+(5*9)+(4*2)+(3*9)+(2*5)+(1*3)=119
119 % 10 = 9
So 103929-53-9 is a valid CAS Registry Number.