18993-58-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18993-58-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,9 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18993-58:
(7*1)+(6*8)+(5*9)+(4*9)+(3*3)+(2*5)+(1*8)=163
163 % 10 = 3
So 18993-58-3 is a valid CAS Registry Number.