15409-03-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15409-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,4,0 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15409-03:
(7*1)+(6*5)+(5*4)+(4*0)+(3*9)+(2*0)+(1*3)=87
87 % 10 = 7
So 15409-03-7 is a valid CAS Registry Number.