15801-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15801-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,0 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 15801-97:
(7*1)+(6*5)+(5*8)+(4*0)+(3*1)+(2*9)+(1*7)=105
105 % 10 = 5
So 15801-97-5 is a valid CAS Registry Number.