In their experiments, the researchers used sophisticated extraction techniques to obtain purified amounts of piperdeine and piperidine
from the venom glands of both red and black imported fire ants.
Prior to the passage of the Anti-Drug Abuse Act of 1988, the equivalent language of the United States Code punished a person who "possesses any piperidine
knowing, or having reasonable cause to believe, that the piperidine
will be used to manufacture phencyclidine.
The metabolite has a unique structure compared to the previously reported metabolites in that it retains methylenedioxy ring and conjugated double bonds while the piperidine
ring is modified to form propionic acid group.
14) Recently, research measuring the toxicity of 8 repellents to female mosquitoes suggested that another piperidine
compound, A13-31220, (15) may be more toxic at lower concentrations than deet.
HALS properties like basicity, solubility, migration resistance, and thermal stability are controlled by the molecular structure, that is, the molecular weight, the linkage between the piperidine
rings, and the piperidine
It also contains a hindered amine free radical scavenger based on a substituted tetramethyl piperidine
with an N-[CH.
A search of the Ready's home revealed a stash of unclassified and illegal drugs including Ketamine, cocaine, cannabis, skunk, ecstasy and piperidine
Similar synergism was also observed in a test tunnel apparatus when DEET of another insect repellent (hydroxyethyl isobutyl piperidine
carboxylate [also known as icaridin of KBR 3023]) was mixed with an organophosphate (OP; pirimiphos methyl [PM]) on mosquito nets baited with guinea pigs (13).
While patents from the 1950s to the 1980s covered a wide range of species claimed to be efficacious for the protection of nylons, it was not until the 1990s that a systematic study examined the effectiveness of "standard" antioxidants such as hindered phenols, aromatic amines, and piperidine
REAGENTS, MATERIALS, AND ANALYTIC SAMPLES Methanol, piperidine
, and imidazole were obtained from Sigma-Aldrich and used without additional purification.
Basson said the cocaine was to be used to develop a piperidine
derivative as an incapacitant, but the idea was never pursued.
Known hypersensitivity to donepezil or piperidine