• amine
  • Polar groups, hydroxyls and amine groups can form acid-base and hydrogen bonds with polar groups on substrates like paper or wood or natural fibers. (wikipedia.org)
  • Amine blends that are activated by concentrated piperazine are used extensively in commercial CO2 removal for carbon capture and storage (CCS) because piperazine advantageously allows for protection from significant thermal and oxidative degradation at typical coal flue gas conditions. (wikipedia.org)
  • nonetheless, the CO2 absorption rate, heat of absorption, and solvent capacity are increased through the addition of piperazine to amine gas treating solvents, the most common of which is MDEA due to its unmatched high rate and capacity efficiency. (wikipedia.org)
  • Their weapon designations are: HN1: Bis(2-chloroethyl)ethylamine HN2: Bis(2-chloroethyl)methylamine HN3: Tris(2-chloroethyl)amine Nor-mustard can be used in the synthesis of piperazine drugs. (wikipedia.org)
  • TFMPP
  • Piperazines, especially BZP and TFMPP were extremely common adulterants in the club and rave scene, often being passed off as MDMA, although they do not share many similarities in their effects. (wikipedia.org)
  • amino
  • An amphoteric ion-permeable composite membrane composed of a microporous substrate, and supported on the substrate, a thin amphoteric ion-exchange film formed of an active amino group-containing polymer which has been interfacially crosslinked at least at the surface portion of the thin film, said membrane. (google.com)
  • Site directed mutagenesis studies of the 5-HT 3A R have revealed several amino acids that are thought to form part of the binding domain of this receptor. (biomedcentral.com)
  • There have been theoretical investigations of the analogous compound obtained by substituting amino groups (-NH2) for the hydroxyl (OH) groups to yield 1,2-diamino-3-cyclobutenedione, and of a compound consisting of two squarate rings bridged by (-NH-) bonds to form bis(3-cyclobutene-1,2-dione)piperazine. (wikipedia.org)
  • compound
  • The in vivo oxidation of lipids and lipid-containing molecules has been discovered to be initiated by the concurrent reaction of such lipid materials with reducing sugars such as glucose, advanced glycosylation endproducts such as AGE-peptides, or a compound which forms advanced glycosylation endproducts, to form materials or particles known as AGE-lipids. (freepatentsonline.com)
  • piperazines are formed by cyclization of a two-ethylene unit compound to give the six-membered ring. (wikipedia.org)
  • hydroxyl
  • The two components display acid-base interactions between the carbonyl groups of vinyl acetate and hydroxyl groups of TPR, complexes are formed between phenolic rings of TPR and hydroxyl groups on the surface of aluminium substrates, and interactions between carbonyl groups and silanol groups on surfaces of glass substrates are formed. (wikipedia.org)
  • Zealand
  • A ban was intended to come into effect in New Zealand on December 18, 2007, but the law change did not go through until the following year, and the sale of BZP and the other listed piperazines became illegal in New Zealand as of 1 April 2008. (wikipedia.org)
  • complexes
  • The results obtained from DFT calculations not only gave a good support to the experimental results and verified the experimentally demonstrated Ni-atom transfer mechanism from Ni=E (E = CH2, NH, PH) activating complex to ethylene to form three-membered ring products but also validated the application of late transition metal complexes in respective process. (unt.edu)
  • Only three of Good's buffers do not form noticeable complexes with any metals: MES, MOPS and PIPES. (wikipedia.org)
  • orally
  • The drug, in the form of a pill taken orally, was launched by Delalande in 1976 under the tradename Vasodistal, for treatment of heart failure, balance disorders, cerebrovascular disease, and vascular complications of diabetes. (wikipedia.org)
  • An orally disintegrating form, marketed as Staxyn and Levitra Soft, has been gaining approvals in countries such as the United States and Canada. (wikipedia.org)
  • pill
  • In 2007 piperazine based party-pill formulations started to become widely available nationwide which has caused concern with local authorities such as Health Canada and subsequently BZP has gained much media attention in 2008. (wikipedia.org)
  • Vardenafil is also available under the name Staxyn as a tablet which dissolves on the tongue rather than being swallowed in the form of a pill. (wikipedia.org)
  • Product
  • Piperazine is formed as a co-product in the ammoniation of 1,2-dichloroethane or ethanolamine. (wikipedia.org)
  • In the general reaction mechanism, 1,2-bis(trimethylsilyloxy)cyclobutene is reacted with the intermediate to form the second product in 85% yield. (wikipedia.org)
  • The final step involves reacting this product with BH3 in THF, then reacting the product with piperazine in MeOH at reflux. (wikipedia.org)
  • occurs
  • A third and final moulting occurs to give the mature form of A. caninum which then feeds on mucosa and blood of the small intestine wall. (wikipedia.org)
  • donor
  • The pyrazolopyrimidinone of sildenafil mimics that of the guanine in cGMP and has the same H-bond donor and acceptor features, forming a bidendrate H-bond with Q817. (wikipedia.org)
  • active
  • describe the Q pocket as subdivided into 3 parts:A saddle formed by the conserved glutamine (Q817 in PDE5A, Q443 in PDE4B and Q369 in PDE4D) and the P clamp (a hydrophopic clamp at the narrow side of the active sites pocket, formed of invariant purine-selective glutamine and a pair of conserved residues). (wikipedia.org)
  • chemical
  • The raw materials can be purchased from various chemical supply agencies and formed into tablets or capsules using relatively cheap production techniques. (wikipedia.org)
  • originally
  • It was originally developed in its 3H radiolabelled form for the purpose of mapping the distribution of dopaminergic neurons in the brain by selective labelling of dopamine transporter proteins. (wikipedia.org)
  • relatively
  • even a relatively weak nonpolar-nonpolar surface interaction can form a fairly strong bond prone primarily to a cohesive failure. (wikipedia.org)
  • Medical
  • However, there are some references to BZP in medical literature that predate interest in piperazines as antihelminthics. (wikipedia.org)
  • Even so, the majority of the early work with the piperazines were investigations into their potential use as antihelminthics with the earliest clinical trials in the literature relating to piperazine being articles in the British Medical Journal in the 1950s. (wikipedia.org)
  • interactions
  • Weak bonding interactions and luminescent transitions were explained by calculation of Hg dimers, excimers and exciplexes formed with noble gases. (unt.edu)
  • time
  • At that time it was proposed that the ICLs were formed between N-7 atom of guanine residue in a 5'-d(GC) sequence. (wikipedia.org)
  • step
  • A second attack after the displacement of the second chlorine forms the second alkylation step that results in the formation of interstrand cross-links (ICLs) as it was shown in the early 1960s. (wikipedia.org)
  • lower
  • Two ventral sets form a lower-jaw equivalent, while a further set projects from the dorsal side and loosely equates to an upper-jaw. (wikipedia.org)
  • include
  • Estrogen conjugates include sulfate and glucuronide conjugates of estradiol, estrone, and estriol: Sulfated: Estradiol sulfate Estrone sulfate Estriol sulfate Glucuronidated: Estradiol glucuronide Estrone glucuronide Estriol glucuronide Double conjugates like estriol sulfate glucuronide can also be formed. (wikipedia.org)