23918-45-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23918-45-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,1 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23918-45:
(7*2)+(6*3)+(5*9)+(4*1)+(3*8)+(2*4)+(1*5)=118
118 % 10 = 8
So 23918-45-8 is a valid CAS Registry Number.