Nicotinamide, a vitamin B3 derivative, is an inhibitor of SIRT1 (IC50=50-180 μM) and SIRT2 (IC50=2 μM). Nicotinamide can be used as a precursor of nicotinamide adenine dinucleotide or NAD+, which can be supplemented by dietary intake and can prevent or treat melanoglossia and pellagra.

Anabasine ((S)-Anabasine) is an alkaloid extracted from tobacco, acting as a full agonist of nicotinic acetylcholine receptors (nAChRs) with insecticidal activity. It depolarizes TE671 cells that endogenously express human myotypic nAChRs.

(S)-(-)-Anatabine ((-)-Anatabine), an alkaloid present in tobacco, is an NRF2 activator that attenuates ovalbumin-induced asthma through oxidative stress and inflammation mitigation as well as up-regulation of Nrf2 HO-1 signaling in rats, and may be used in the study of autoimmune thyroiditis.

Nicotine 1'-N-oxide ((1′S,2′S)-Nicotine-1'-oxide) is a derivative of nicotine obtained from tobacco smoke condensate.

Delta-hexalactone is a six-membered cyclic lactone widely used in biochemical experiments and drug synthesis research.

4-Methyl-1-pentanol exhibits inhibitory activity against SCC-25 cells and NHK cells (normal human keratinocytes), making it useful for cancer research.

2-(Piperidin-2-yl)piperidine is a bipyridine derivative widely used in biochemical experiments and drug synthesis research.

Isonicoteine is a structural isomer of pyridine alkaloids and nicotine, widely used in biochemical experiments and drug synthesis research.