ChEBI

Any minor or unwanted substance introduced into the environment that can have undesired effects.

A molecular entity capable of donating a hydron to an acceptor (Bronsted base).

Any antiviral agent which inhibits the activity of coronaviruses.

Any fungal metabolite produced during a metabolic reaction in Penicillium.

Poisonous substance produced by fungi.

A substance that kills or slows the growth of microorganisms, including bacteria, viruses, fungi and protozoans.

An EC 1.1.1.* (oxidoreductase acting on donor CH-OH group, NAD+ or NADP+ acceptor) inhibitor that interferes with the action of IMP dehydrogenase (EC 1.1.1.205), so blocking de novo biosynthesis of purine nucleotides.

An agent that suppresses immune function by one of several mechanisms of action. Classical cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T-cells or by inhibiting the activation of helper cells. In addition, an immunosuppressive agent is a role played by a compound which is exhibited by a capability to diminish the extent and/or voracity of an immune response.

A xenobiotic (Greek, xenos "foreign"; bios "life") is a compound that is foreign to a living organism. Principal xenobiotics include: drugs, carcinogens and various compounds that have been introduced into the environment by artificial means.

A substance that inhibits or prevents the proliferation of neoplasms.

An agent that suppresses immune function by one of several mechanisms of action. Classical cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T-cells or by inhibiting the activation of helper cells. In addition, an immunosuppressive agent is a role played by a compound which is exhibited by a capability to diminish the extent and/or voracity of an immune response.