103986-54-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103986-54-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,8 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 103986-54:
(8*1)+(7*0)+(6*3)+(5*9)+(4*8)+(3*6)+(2*5)+(1*4)=135
135 % 10 = 5
So 103986-54-5 is a valid CAS Registry Number.