103507-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103507-15-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,5,0 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 103507-15:
(8*1)+(7*0)+(6*3)+(5*5)+(4*0)+(3*7)+(2*1)+(1*5)=79
79 % 10 = 9
So 103507-15-9 is a valid CAS Registry Number.