18597-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18597-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,5,9 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18597-90:
(7*1)+(6*8)+(5*5)+(4*9)+(3*7)+(2*9)+(1*0)=155
155 % 10 = 5
So 18597-90-5 is a valid CAS Registry Number.