TMPH HYDROCHLORIDE Chemical Properties

storage temp. 

2-8°C

solubility 

H₂O: 22 mg/mL at ~60 °C

form 

solid

color 

white

Water Solubility 

H2O: 22mg/mL at~60°C

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38-43

Safety Statements 

26-36/37

WGK Germany 

3

TMPH HYDROCHLORIDE Usage And Synthesis

Uses

TMPH Hydrochloride is a potent inhibitor of neuronal AChRs. Therapeutic agent potentially used for the treatment of this progressive neurodegenerative disease such as globoid cell leukodystrophy (GLD) or Krabbe disease.

Biological Activity

2,2,6,6-tetramethylpiperidin-4-yl heptanoate (TMPH) is a potent inhibitor of neuronal nicotinic receptors. Evaluation of nicotinic acetylcholine receptor (nAChR) subunits expressed in Xenopus laevis oocytes indicated th at TMPH can produce a potent and long-lasting inhibition of neuronal nAChR formed by the pairwise combination of the most abundant neuronal alpha (i.e., alpha3 and alpha4) and beta subunits (beta2 and beta4), with relatively little effect, because of rapid reversibility of inhibition, on muscle-type (alpha1beta1gammadelta) or alpha7 receptors. However, the inhibition of neuronal beta subunit-containing receptors was also decreased if any of the nonessential subunits alpha5, alpha6, or beta3 were coexpressed. This decrease in inhibition is shown to be associated with a single amino acid present in the second transmembrane domain of these subunits. TMPH abilitty to relate the diverse central nervous system effects to specific nAChR subtypes makes it a useful tool for studying the functional roles of nAChR.