103907-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103907-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,0 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 103907-87:
(8*1)+(7*0)+(6*3)+(5*9)+(4*0)+(3*7)+(2*8)+(1*7)=115
115 % 10 = 5
So 103907-87-5 is a valid CAS Registry Number.