Understand the properties of Chlorhexidine: Chlorhexidine is a chemical compound that belongs to the biguanides group and is widely used as an antiseptic.
Evaluate statement A: Chlorhexidine is indeed a member of the biguanides group, which is correct.
Evaluate statement B: Chlorhexidine is extensively used as an antiseptic, which is also correct.
Evaluate statement C: Chlorhexidine is effective against vegetative cells, so the statement that it is ineffective is incorrect.
Evaluate statement D: Chlorhexidine is not limited in use due to high toxicity; it is generally considered safe for use in various applications, making this statement incorrect.