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Nicotinsure Produkt Beschreibung

Nicotinic acid Struktur
59-67-6
CAS-Nr.
59-67-6
Bezeichnung:
Nicotinsure
Englisch Name:
Nicotinic acid
Synonyma:
VB3;NICO;Niac;S115;Linic;Nicyl;Tinic;NIACIN;Akotin;Bionic
CBNumber:
CB0276607
Summenformel:
C6H5NO2
Molgewicht:
123.11
MOL-Datei:
59-67-6.mol

Nicotinsure Eigenschaften

Schmelzpunkt:
236-239 °C(lit.)
Siedepunkt:
260C
Dichte
1.473
Brechungsindex
1.5423 (estimate)
Flammpunkt:
193°C
storage temp. 
2-8°C
Löslichkeit
18g/l
pka
4.85(at 25℃)
Aggregatzustand
Powder
Farbe
White to off-white
PH
2.7 (18g/l, H2O, 20℃)
Wasserlöslichkeit
1-5 g/100 mL at 17 ºC
Merck 
14,6525
BRN 
109591
Stabilität:
Stable. Incompatible with strong oxidizing agents. May be light sensitive.
InChIKey
PVNIIMVLHYAWGP-UHFFFAOYSA-N
CAS Datenbank
59-67-6(CAS DataBase Reference)
NIST chemische Informationen
Niacin(59-67-6)
EPA chemische Informationen
Nicotinic acid (59-67-6)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi,T,F
R-Sätze: 36/37/38-36-39/23/24/25-23/24/25-11
S-Sätze: 26-36-24/25-45-36/37-16-7
RIDADR  UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany  1
RTECS-Nr. QT0525000
8
Selbstentzündungstemperatur >365 °C Dust
TSCA  Yes
HS Code  29362990
Giftige Stoffe Daten 59-67-6(Hazardous Substances Data)
Toxizität LD50 s.c. in rats: 5 g/kg (Brazda, Coulson)
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H225 Flüssigkeit und Dampf leicht entzündbar. Entzündbare Flüssigkeiten Kategorie 2 Achtung P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H370 Schädigt die Organe. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 1 Achtung P260, P264, P270, P307+P311, P321,P405, P501
Sicherheit
P210 Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen.
P260 Dampf/Aerosol/Nebel nicht einatmen.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P311 GIFTINFORMATIONSZENTRUM/Arzt anrufen.
P301+P310 BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P337+P313 Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

Nicotinsure Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

WEISSE KRISTALLE ODER KRISTALLINES PULVER

PHYSIKALISCHE GEFAHREN

Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft möglich.

CHEMISCHE GEFAHREN

Beim Verbrennen Bildung von giftigen Gasen mit Stickoxiden. Reagiert mit Oxidationsmitteln, starken Säuren und Basen.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt.
MAK nicht festgelegt.

INHALATIONSGEFAHREN

Eine belästigende Partikelkonzentration in der Luft kann schnell erreicht werden beim Dispergieren, vor allem als Pulver.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt schwach die Augen.

LECKAGE

Persönliche Schutzausrüstung: Atemschutzgerät mit Partikelfilter entsprechend der Arbeitsplatzkonzentration des Stoffes. Verschüttetes Material in Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen. NICHT in die Umwelt gelangen lassen.

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S24/25:Berührung mit den Augen und der Haut vermeiden.

Aussehen Eigenschaften

C6H5NO2; Niacin, Pyridin-3-carbonsäure. Farbloses bis leicht gelbliches Pulver ohne Geruch.

Gefahren für Mensch und Umwelt

Reizt die Augen. Nach Resorption größerer Mengen Narkose, Blutdruckabfall und ZNS-Störungen möglich.
LD50 (oral, Ratte): >5000 mg/kg

Schutzmaßnahmen und Verhaltensregeln

Geeignete Schutzhandschuhe als kurzzeitiger Staubschutz.

Verhalten im Gefahrfall

Staubentwicklung vermeiden. Stäube nicht einatmen.
Trocken aufnehmen. Der Entsorgung zuführen. Nachreinigen.
Kohlendioxid, Wasser, Pulver.
Brennbar. Im Brandfall können nitrose Gase entstehen.

Erste Hilfe

Nach Hautkontakt: Mit reichlich Wasser abwaschen.
Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 10 Minuten ausspülen. Augenarzt hinzuziehen.
Nach Einatmen: Frischluft.
Nach Verschlucken: Reichlich Wasser trinken. Erbrechen auslösen. Arzt hinzuziehen.
Nach Kleidungskontakt: Kontaminierte Kleidung entfernen.
Ersthelfer: siehe gesonderten Anschlag

Sachgerechte Entsorgung

Als feste Laborchemikalienabfälle.

Beschreibung

Niacin is an additive to food on the basis of its nutrient supplement qualities as a vitamin (as an enzyme co-factor). This water-soluble vitamin of the B complex occurs in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. A deficiency of niacin results in the disease, pellagra.

Chemische Eigenschaften

NIACIN is sometimes referred to as nicotinic acid or nicotinamide and earlier called the P-P factor, antipellagra factor, antiblacktongue factor, and vitamin B4, niacin is available in several forms (niacin, niacinamide, niacinamide ascorbate, etc.) for use as a nutrient and dietary supplement. Niacin is frequently identified with the B complex vitamin grouping. Early in the research on niacin, a nutritional niacin deficiency was identified as the cause of pellagra in humans, blacktongue in dogs, and certain forms of dermatosis in humans. Niacin deficiency is also associated with perosis in chickens as well as poor feathering of the birds.

Physikalische Eigenschaften

Nicotinic acid and nicotinamide are colorless crystalline substances. Each is insol uble or only sparingly soluble in organic solvents. Nicotinic acid is slightly soluble in water and ethanol; nicotinamide is very soluble in water and moderately soluble in ethanol
Nicotinic acid is amphoteric and forms salts with acids as well as bases. Its car boxyl group can form esters and anhydrides and can be reduced. Both nicotinic acid and nicotinamide are very stable in dry form, but in solution nicotinamide is hydro lyzed by acids and bases to yield nicotinic ac
The coenzyme forms of niacin are the pyridine nucleotides, NAD(H) and NADP(H). In each of these compounds, the electron-withdrawing effect of the N-1 atom and the amide group of the oxidized pyridine nucleus enables the pyridine C-4 atom to react with many nucleophilic agents (e.g., sulfite, cyanide, and hydride ions). It is the reaction with hydride ions (H?) that is the basis of the enzymatic hydrogen transfer by the pyridine nucleotides; the reaction involves the transfer of two electrons in a single step
Several substituted pyridines are antagonists of niacin in biological systems: pyridine-3-sulfonic acid, 3-acetylpyridine, isonicotinic acid hydrazine, 17 and 6-aminonicotinamide

History

Huber first synthesized nicotinic acid in 1867. In 1914, Funk isolated nicotinic acid from rice polishings. Goldberger, in 1915, demonstrated that pellagra is a nutritional deficiency. In 1917, Chittenden and Underhill demonstrated that canine blacktongue is similar to pellagra. In 1935, Warburg and Christian showed that niacinamide is essential in hydrogen transport as diphosphopyridine nucleotide (DPN). In the following year, Euler et al. isolated DPN and determined its structure. In 1937, Elvhehjem et al. cured blacktongue by administration of niacinamide derived from liver. In the same year, Fouts et al. cured pellagra with niacinamide. In 1947, Handley and Bond established conversion of tryptophan to niacin by animal tissues.

Verwenden

Nicotinic acid. It is a precursor of the coenzymes NAD and NADP. Widely distributed in nature; appreciable amounts are found in liver , fish, yeast and cereal grains. Dietary deficiency is associated with pellagra. The term “niacin” has also been applied to nicotinamide or to other derivatives exhibiting the biological activity of nicotinic acid. Vitamin (enzyme cofactor).

Verwenden

niacin is also known as vitamin B3. It is a water-soluble conditioning agent that improves rough, dry, or flaky skin, helping smooth the skin and improve its suppleness. niacin enhances the appearance and feel of hair, by increasing body, suppleness, or sheen, or by improving the texture of hair that has been damaged physically or by chemical treatment. When used in the formulation of skin care products, niacinamide and niacin enhance the appearance of dry or damaged skin by reducing flaking and restoring suppleness.

Verwenden

Nicotinic acid. It is a precursor of the coenzymes NAD and NADP. Widely distributed in nature; appreciable amounts are found in liver , fish, yeast and cereal grains. Dietary deficiency is associated with pellagra. The term "niacin" has also been applied.
Niacin is a water-soluble b-complex vitamin that is necessary for the growth and health of tissues. It prevents pellagra. It has a solubility of 1 g in 60 ml of water and is readily soluble in boiling water. It is relatively stable in storage and no loss occurs in ordinary cooking. Sources include liver, peas, and fish. It was originally termed nicotinic acid and also functions as a nutrient and dietary supplement.

Definition

ChEBI: A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group.

Trademarks

Niacor (Upsher Smith); Niaspan (KOS); Nicolar (Sanofi Aventis); Wampocap (Medpointe).

Allgemeine Beschreibung

Nicotinic acid, 3-pyridinecarboxylicacid (Niacin), is effective in the treatment of all types ofhyperlipoproteinemia except type I, at doses above thosegiven as a vitamin supplement. The drug reduces VLDLsynthesis and, subsequently, its plasma products, IDL andLDL. Plasma triglyceride levels are reduced because of thedecreased VLDL production. Cholesterol levels are lowered,in turn, because of the decreased rate of LDL formationfrom VLDL. Although niacin is the drug of choicefor type II hyperlipoproteinemias, its use is limited becauseof the vasodilating side effects. Flushing occurs inpractically all patients but generally subsides when thedrug is discontinued.
The hypolipidemic effects of niacin may be caused byits ability to inhibit lipolysis (i.e., prevent the release ofFFAs and glycerol from fatty tissues). Therefore, there is areduced reserve of FFA in the liver and diminution oflipoprotein biosynthesis, which reduces the production ofVLDL. The decreased formation of lipoproteins leads to apool of unused cholesterol normally incorporated inVLDL. This excess cholesterol is then excreted throughthe biliary tract.

Allgemeine Beschreibung

Odorless white crystalline powder with a feebly acid taste. pH (saturated aqueous solution) 2.7. pH (1.3% solution) 3-3.5.

Air & Water Reaktionen

Water soluble.

Reaktivität anzeigen

Nicotinic acid is incompatible with strong oxidizers. Nicotinic acid is also incompatible with sodium nitrite.

Brandgefahr

Flash point data for Nicotinic acid are not available; however, Nicotinic acid is probably combustible.

Biologische Aktivität

Nicotinic acid can be converted to nicotinamide in the animal body and, in this form, is found as a component of two oxidation-reduction coenzymes, NAD and NADP.The nicotinamide portion of the coenzyme transfers hydrogens by alternating between an oxidized quaternary nitrogen and a reduced tertiary nitrogen. Enzymes that contain NAD or NADP are usually called dehydrogenases. They participate in many biochemical reactions of lipid, carbohydrate, and protein metabolism. An example of an NAD-requiring system is lactic dehydrogenase which catalyzes the conversion of lactic acid to pyruvic acid.

Biochem/physiol Actions

Nicotinic is an antioxidant and acts as a coenzyme in the form of nicotinamide adenine nucleotides(NAD). It modulates lipid metabolism and may be useful in treating dyslipidemia. Nicotinic acid reduces the low-density lipoprotein (LDL) synthesis and improves high-density lipoprotein (HDL) levels. Deficiency of niacin leads to enhanced lipid peroxidation and is implicated in Crohn′s disease Deficiency also impacts DNA repair and also leads to skin and gastrointestinal disorder pellagra.

Mechanism of action

Nicotinic acid decreases formation and secretion of VLDL by the liver.This action appears secondary to its ability to inhibit fatty acid mobilization from adipose tissue. Circulating free fatty acids provide the main source of fatty acids for hepatic triglyceride synthesis, and lowering triglyceride synthesis lowers VLDL formation and secretion by the liver. Since plasma VLDL is the source of LDL, lowering VLDL can ultimately lower LDL. In addition, nicotinic acid shifts LDL particles to larger (more buoyant) sizes. The larger LDL particles are thought to be less atherogenic. Nicotinic acid can also significantly increase plasma HDL levels; the mechanism is unknown.

Pharmakokinetik

Nicotinic acid is readily absorbed. Peripheral vasodilation is seen within 20 minutes, and peak plasma concentrations occur within 45 minutes. The half-life of the compound is approximately one hour, thus necessitating frequent dosing or an extended-release formulation. Extended release tablets produce peripheral vasodilation within 1 hour, reach peak plasma concentrations within 4 to 5 hours, and have a duration of 8 to 10 hours.
Dosing of nicotinic acid should be titrated to minimize adverse effects. An initial dose of 50 to 100 mg t.i.d. often is used with immediaterelease tablets. The dose then is gradually increased by 50 to 100 mg every 3 to 14 days, up to a maximum of 6 g/day, as tolerated. Therapeutic monitoring to assess efficacy and prevent toxicity is essential until a stable and effective dose is reached. Similar dosing escalations are available for extended-release products, with doses normally starting at 500 mg once daily at bedtime..

Clinical Use

Nicotinic acid has been esterified to prolong itshypolipidemic effect. Pentaerythritol tetranicotinate hasbeen more effective experimentally than niacin in reducingcholesterol levels in rabbits. Sorbitol and myo-inositolhexanicotinate polyesters have been used in the treatment ofpatients with atherosclerosis obliterans.The usual maintenance dose of niacin is 3 to 6 g/daygiven in three divided doses. The drug is usually given atmealtimes to reduce the gastric irritation that often accompanieslarge doses.

Nebenwirkungen

Compliance with nicotinic acid therapy can be poor because the drug can produce an intense cutaneous flush. This can be reduced by beginning the drug in stepped doses of 250 mg twice daily and increasing the dose monthly by 500 to 1000 mg per day to a maximum of 3000 mg per day.Taking nicotinic acid on a full stomach (end of meal) and taking aspirin before dosage can reduce the severity of flushing. Time-release forms of nicotinic acid may also decrease cutaneous flushing. Nicotinic acid can cause gastrointestinal (GI) distress,liver dysfunction (especially at high doses), decreased glucose tolerance, hyperglycemia, and hyperuricemia. Thus, it is contraindicated in patients with hepatic dysfunction, peptic ulcer, hyperuricemia, or diabetes mellitus. A paradox associated with nicotinic acid is that it is the most widely available hypolipidemic drug (it is sold over the counter), yet its use requires the closest management by the physician.

Sicherheitsprofil

Poison by intraperitoneal route. Moderately toxic by ingestion, intravenous, and subcutaneous routes. Human systemic effects: change in clotting factors, changes in platelet count. Questionable carcinogen with experimental carcinogenic data. When heated to decomposition it emits toxic fumes of NOx.

Chemical Synthesis

Nicotinic acid, pyridine-3-carboxylic acid (20.2.9) is synthesized industrially by heating a paraldehyde trimer of acetaldehyde, under pressure with ammonia, which leads to the formation of 2-methyl-5-ethylpyridine, followed by oxidation with nitric acid which gives the desired product.

Stoffwechsel

Nicotinic acid is a B-complex vitamin that is converted to nicotinamide, NAD+ , and NADP+ .The latter two compounds are coenzymes and are required for oxidation/reduction reactions in a variety of biochemical pathways. Additionally, nicotinic acid is metabolized to a number of inactive compounds, including nicotinuric acid and N-methylated derivatives. Normal biochemical regulation and feedback prevent large doses of nicotinic acid from producing excess quantities of NAD+ and NADP+ .Thus, small doses of nicotinic acid, such as those used for dietary supplementation, will be primarily excreted as metabolites, whereas large doses, such as those used for the treatment of hyperlipoproteinemia, will be primarily excreted unchanged by the kidney.

läuterung methode

Crystallise the acid from *benzene, EtOH or H2O. It sublimes without decomposition. [McElvain Org Synth Coll Vol I 385 1941, Beilstein 22 III/IV 439, 22/2 V 57.]

Nicotinsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Nicotinsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 791)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Tanjin Zhongui Pharmaceutical Co. Ltd.
+8613821161669
13821161669@163.com United States 1 58
Shaanxi Yikanglong Biotechnology Co., Ltd.
17791478691
yklbiotech@163.com CHINA 297 58
Dideu Industries Group Limited
029-88380327
Service@dideu.com CHINA 30014 58
Frapp's ChemicalNFTZ Co., Ltd.
+86 (576) 8169-6106
+86 (576) 8169-6105 sales@frappschem.com China 886 50
Shanghai Bojing Chemical Co.,Ltd.
+86-21-37122233
+86-21-37127788 Candy@bj-chem.com CHINA 497 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 jack.li@time-chemicals.com China 1807 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 9134 55
Hubei XinRunde Chemical Co., Ltd.
+8615102730682
02783214688 bruce@xrdchem.cn CHINA 567 55
Nanjing Finetech Chemical Co., Ltd.
025-85710122 17714198479
025-85710122 sales@fine-chemtech.com CHINA 890 55

59-67-6(Nicotinsure)Verwandte Suche:


  • BETA-PICOLINIC ACID
  • AKOS BBS-00003719
  • ACIDUM-NICOTINICUM
  • 3-PICOLINIC ACID
  • 3-CARBOXYPYRIDINE
  • RARECHEM AL BO 0217
  • TIMTEC-BB SBB004279
  • NICOTINIC ACID
  • NICONACID
  • NIACIN
  • PELLAGRA PREVENTIVE FACTOR
  • PYRIDINE-3-CARBOXYLATE
  • PYRIDINE-3-CARBOXYLIC ACID
  • PYRIDINE-BETA-CARBOXYLIC ACID
  • VITAMIN B3
  • 3-Carboxylpyridine
  • Vitamin B5
  • Acide nicotinique
  • acidenicotinique
  • Akotin
  • anti-Pellagra vitamin
  • Nicangin
  • NICO
  • Nico-400
  • Nicobid
  • Nicocap
  • Nicocidin
  • Nicocrisina
  • Nicodan
  • Nicodelmine
  • Nicodon
  • Nicolar
  • Niconat
  • Niconazid
  • Nicorol
  • Nicosan 3
  • nicosan3
  • Nicoside
  • Nico-Span
  • Nicosyl
  • Nicotamin
  • Nicotene
  • Nicotil
  • Nicotine acid
  • nicotineacid
  • nicotinic
  • Nicotinipca
  • nicotinoylhydrazine
  • Nicotinsaure
  • Nicovasan
  • vitaplexn
  • Wampocap
  • D-calcium d-pantothenate
  • Nicotinic acidPh.Eur.GSK project
  • 3 -pyridinecarboxy1ic acid
  • niacin usp
  • Nicotineacid,99%
  • Nicotinic Acid (1.06817)
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