159397-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159397-56-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,3,9 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 159397-56:
(8*1)+(7*5)+(6*9)+(5*3)+(4*9)+(3*7)+(2*5)+(1*6)=185
185 % 10 = 5
So 159397-56-5 is a valid CAS Registry Number.