23693-43-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23693-43-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,6,9 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 23693-43:
(7*2)+(6*3)+(5*6)+(4*9)+(3*3)+(2*4)+(1*3)=118
118 % 10 = 8
So 23693-43-8 is a valid CAS Registry Number.