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Synonyms: 2-Aminoethylpyridine; 2-Pyridineethanamine; 2-(2-Aminoethyl)pyridine; 2-(2-Pyridyl)ethylamine
CAS No.:  2706-56-1
Formula: C7H10N2
Molecular Weight: 122.17
Appearance Yellowish clear liquid
Purity (GC, %) 99.0 min.
Moisture (%) 0.5 max. 
2-Pyridylethylamine is a histamine agonist which is selective for the H1 subtype.
A histamine agonist is a drug which causes increased activity at one or more of the four histamine receptor subtypes.
Betahistine is an example used to treat vertigo.
Betazole and impromidine are examples used in diagnostics.
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Acetic acid (systematically alleged ethanoic acid) is an amoebic admixture with the actinic blueprint CH3CO2H (also accounting as CH3COOH). It is a colourless aqueous that if undiluted is aswell alleged arctic acerb acid. Acerb acerbic is the capital basic of alkali (apart from water), and has a characteristic acerb aftertaste and acerbic smell. It is mainly produced as a forerunner to polyvinylacetate and artificial acetate. Although it is classified as a anemic acid, concentrated acerb acerbic is corrosive, and attacks the skin.
Acetic acerbic is one of the simplest carboxylic acids. It is an important actinic reagent and automated chemical, mainly acclimated in the assembly of artificial acetate mainly for accurate blur and polyvinyl acetate for copse glue, as able-bodied as constructed fibres and fabrics. In households, adulterated acerb acerbic is generally acclimated in descaling agents. In the aliment industry, acerb acerbic is acclimated beneath the aliment accretion cipher E260 as an acidity regulator and as a condiment.
Acetic acid is a anemic acerbic which is apparently a lot of acclaimed for getting the primary acerbic in vinegar. In fact, acerb acerbic has a advanced ambit of uses above admixture on salads, and it is produced in ample volumes all over the world. People accept been alive with this acerbic in a amount of contexts for centuries, with acerb acerbic getting one of the substances explored by alchemists, the predecessors of avant-garde chemists.
This amoebic acerbic can be able in capricious concentrations. In authentic form, it is accepted as arctic acerb acerbic because it crystallizes in air-conditioned temperatures. This anatomy of the acerbic is acutely acerb and can be chancy to plan with, acute appropriate precautions for protection. Vinegar, by contrast, usually has an acerb acerbic absorption of about 5 percent.
There are a amount of means in which this acerbic can be prepared. One adjustment is bacterial fermentation, the address acclimated to accomplish vinegars, in which acerb acerbic is generated as a byproduct of bacterial digestion. Other techniques absorb bearing actinic reactions which aftereffect in this acid, as is done in bartering accomplish of this product. If the acerbic is destined for use in food, however, it is usually produced biologically because this is generally appropriate for aliment labeling reasons.
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CAS Number: 626-60-8
Molecular Weight: 113.54
Molecular Formula: C5H4ClN
Appearance colorless transparent liquid
Purity (HPLC, %) 99.0 min.
Moisture (%) 0.5 max.
Melting point (°C) 147 - 149  
3-Chloropyridine is primarily acclimated to accomplish added pyridine derivatives. Some bartering articles cover pyrithione, pyripropoxyfen, chlorphenamine, and disopyramide. These reactions await on chloride’s attributes as a acceptable abrogation accumulation to facilitate the alteration of a substrate assimilate the pyridine ring. Pyrithione, the conjugate abject of 2-mercaptopyridine-N-oxide, is a fungicide begin in some shampoos. It is generated from 2-chloropyridine by reacting the N-oxide of 2-chloropyridine with Na2S in a basal solution, afore abacus aqueous HCl] Acclimated as an antihistamine, pheniramine may be generated via several altered pathways. One amalgam is to hydroformylate functionalized olefins. This acknowledgment gain by reacting phenylacetonitrile with 2-chloropyridine in the attendance of a base. The consistent average is again alkylated by 2-(dimethylamino)ethyl chloride and the cyano accumulation removed.
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Nicotinic acid is one of 5 vitamins (when defective in animal diet) associated with an catching absence disease: niacin absence (pellagra), vitamin C absence (scurvy), thiamin absence (beriberi), vitamin D absence (rickets), vitamin A absence (night amaurosis and added symptoms). Niacin has been acclimated for over 50 years to access levels of HDL in the claret and has been begin to abundantly abatement the accident of cardiovascular contest in a amount of controlled animal trials.
Niacin binds to and stimulates a G-protein-coupled receptor, GPR109A, which causes the inhibition of fat breakdown in adipose tissue. Nicotinamide does not bind this receptor which explains why it does not affect claret lipid levels. Lipids that are absolved from adipose tissue are commonly acclimated to body very-low-density lipoproteins (VLDL) in the liver, which are precursors of low-density lipoprotein (LDL) or "bad" cholesterol. Because nicotinic acid blocks the breakdown of fats, it causes a abatement in chargeless blubbery acids in the claret and, as a consequence, decreases the beard of VLDL and cholesterol by the liver.
Pharmacological doses of niacin (1.5 - 6 g per day) occasionally advance to ancillary furnishings that can cover dermatological altitude such as derma bloom and itching, dry skin, and derma rashes including eczema deepening and acanthosis nigricans. Some of these affection are about accompanying to niacin's role as the amount attached cofactor in the histidine decarboxylase agitator which converts l-histidine into histamine. H1 and H2 receptor advised histamine is metabolized via a arrangement of address (or di-) amine oxidase and COMT into methylhistamine which is again conjugated through the liver's CYP450 pathways. Persistent bloom and added affection may announce deficiencies in one or added of the cofactors amenable for this enzymatic cascade. Gastrointestinal complaints, such as dyspepsia (indigestion), abhorrence and alarmist toxicity atomic hepatic failure, accept aswell been reported. Ancillary furnishings of hyperglycemia, cardiac arrhythmias and "birth defects in beginning animals" accept aswell been reported.
The alarmist can amalgamate niacin from the capital amino acerbic tryptophan, acute 60 mg of tryptophan to accomplish one mg of niacin. The 5-membered ambrosial heterocycle of tryptophan is broken and rearranged with the alpha amino accumulation of tryptophan into the 6-membered ambrosial heterocycle of niacin. Riboflavin, vitamin B6 and adamant are appropriate in some of the reactions complex in the about-face of tryptophan to NAD.
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CAS Number: 109-00-2
Molecular Weight: 95.10
Molecular Formula: C5H5NO
Physical Appearance: Beige powder
Pyridine is acclimated as a forerunner to agrochemicals and pharmaceuticals and is aswell an important bread-and-butter and reagent. Pyridine is added to booze to accomplish it clashing for bubbler (see Denatured alcohol). It is acclimated in the in vitro amalgam of DNA, in the amalgam of sulfapyridine (a biologic adjoin bacterial and viral infections), antihistaminic drugs tripelennamine and mepyramine, as able-bodied as baptize repellents, bactericides and herbicides. Some actinic compounds, although not actinic from pyridine, accommodate its ring structure. They cover B vitamins niacin and pyridoxal, an anti-tuberculosis biologic isoniazid, nicotine and added nitrogen-containing bulb products. Historically, pyridine was produced from atramentous tar and as a by-product of the atramentous gasification. However, added appeal for pyridine resulted in the development of added economical methods of amalgam from acetaldehyde and ammonia, and added than 20,000 tonnes per year are bogus worldwide.
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