Ethylpyruvat
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- CAS-Nr.
- 617-35-6
- Bezeichnung:
- Ethylpyruvat
- Englisch Name:
- Ethyl pyruvate
- Synonyma:
- ETHYL 2-OXOPROPANOATE;PYRUVIC ACID ETHYL ESTER;PAEE;Ethyl pyroracemate;ETHYL 2-OXOPROPIONATE;ETHYL 2-OXOPROPRIONATE;PYR ET;STEAROY;NSC 48386;FEMA 2457
- CBNumber:
- CB3198366
- Summenformel:
- C5H8O3
- Molgewicht:
- 116.12
- MOL-Datei:
- 617-35-6.mol
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Ethylpyruvat Eigenschaften
- Schmelzpunkt:
- -58 °C
- Siedepunkt:
- 144 °C (lit.)
- Dichte
- 1.045 g/mL at 25 °C (lit.)
- Dampfdruck
- 2.36hPa at 25℃
- FEMA
- 2457 | ETHYL PYRUVATE
- Brechungsindex
- n20/D 1.404(lit.)
- Flammpunkt:
- 114 °F
- storage temp.
- Store at +2°C to +8°C.
- L?slichkeit
- 10g/l
- Aggregatzustand
- Liquid
- Farbe
- Clear pale yellow
- Geruch (Odor)
- at 10.00 % in dipropylene glycol. ether fruity sweet sharp rum vegetable caramel
- Geruchsart
- ethereal
- Wasserl?slichkeit
- Miscible with water, ethanol and ether.
- JECFA Number
- 938
- Merck
- 14,8021
- BRN
- 1071466
- Stabilit?t:
- Volatile
- InChIKey
- XXRCUYVCPSWGCC-UHFFFAOYSA-N
- LogP
- 0.435 at 22.5℃
- CAS Datenbank
- 617-35-6(CAS DataBase Reference)
- NIST chemische Informationen
- Propanoic acid, 2-oxo-, ethyl ester(617-35-6)
- EPA chemische Informationen
- Propanoic acid, 2-oxo-, ethyl ester (617-35-6)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
| Kennzeichnung gef?hrlicher |
Xi,F |
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| R-S?tze: |
10 |
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| S-S?tze: |
16 |
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| RIDADR |
UN 3272 3/PG 3 |
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| WGK Germany |
3 |
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| Hazard Note |
Flammable/Irritant |
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| TSCA |
Yes |
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| HazardClass |
3 |
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| PackingGroup |
III |
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| HS Code |
29183000 |
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| Toxizit?t |
LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rat > 2000 mg/kg |
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| Bildanzeige (GHS) |
 
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| Alarmwort |
Achtung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H226 |
Flüssigkeit und Dampf entzündbar. |
Entzündbare Flüssigkeiten |
Kategorie 3 |
Warnung |
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| H314 |
Verursacht schwere Ver?tzungen der Haut und schwere Augensch?den. |
?tzwirkung auf die Haut |
Kategorie 1B |
Achtung |
![GHS hazard pictograms]() src="/GHS05.jpg" width="20" height="20" /> |
P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 |
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| Sicherheit |
| P210 |
Von Hitze, hei?en Oberfl?chen, Funken, offenen Flammen und anderen Zündquellenarten fernhalten. Nicht rauchen. |
| P233 |
Beh?lter dicht verschlossen halten. |
| P240 |
Beh?lter und zu befüllende Anlage erden. |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
| P303+P361+P353 |
BEI BERüHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen. |
| P305+P351+P338 |
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen. |
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Ethylpyruvat Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R10:Entzündlich.
S-S?tze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
Chemische Eigenschaften
Ethyl pyruvate has a vegetable, caramel odor.
Occurrence
Reported found in Parmesan cheese, cognac, grape wines, cocoa and mushrooms.
Verwenden
Ethyl pyruvate (EP) has demonstrated neuroprotective effects against acute brain injury through its anti-inflammatory action.
synthetische
By direct esterification of pyruvic acid with absolute ethyl alcohol at the boil and subsequent vacuum distillation; by
esterification via oxidation of vapors of ethyl lactate in the presence of V2O5 at 155°C
Allgemeine Beschreibung
Ethyl pyruvate is a volatile aliphatic ester of the pyruvate metabolite. It is present as a food additive/odor-active component in various food and beverage products. It is also used as an inhibitory odorant to repel the insects from human proximity.
l?uterung methode
Shake the ester with 10mL portions of saturated aqueous CaCl2 solution (removes ethyl acetate) and the organic layer is removed by centrifugation, decantation and filtration, and is distilled under reduced pressure. Purification of small quantities is carried out via the bisulfite adduct: the ester (2.2mL) is shaken with saturated NaHSO3 (3.6mL), chilled in a freezing mixture when crystals separate rapidly (particularly if seeded). After 5minutes EtOH (10mL) is added and the crystals are filtered off, washed with EtOH and Et2O and dried. Yield ca 3g of bisulfite adduct. Then treat the adduct (16g) with saturated aqueous MgSO4 (32mL) and 40% formaldehyde (5mL) and shake, whereby the ester separates as an oil which is extracted with Et2O. The extract is dried (MgSO4), filtered, evaporated and the residue is distilled (b 56o/20mm), and then redistilled (b 147.5o/750mm) to give 5.5g of pure ester. [Cornforth Org Synth Coll Vol IV 467 1963, Beilstein 3 IV 1513.]
Ethylpyruvat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Ethylpyruvat Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 592)Lieferanten
617-35-6(Ethylpyruvat)Verwandte Suche:
- PYR ET
- RARECHEM AL BI 0116
- ETHYL PYRUVATE
- FEMA 2457
- Ethyl methylglyoxylate
- 2-Oxopropionic acid ethyl
- Pyruvic acid ethyl
- NSC 48386
- ETHYL PYRUVATE FOR SYNTHESIS 100 ML
- ETHYL PYRUVATE FOR SYNTHESIS 500 ML
- Ethyl Purivate
- Ethyl pyruvat
- Ethyl pyruvate, Ethyl 2-oxopropionate
- 2-oxo-propanoicaciethylester
- 2-oxo-propionicacidethylester
- 2-Oxpropanoicacidethylester
- Propanoicacid,2-oxo-,ethylester
- ETHYL PYRUVATE 97+%
- ETHYL PYRUVATE NATURAL 97+%
- Propanoic acid, 2-oxo-, ethyl ester (9CI)
- Ethylpyruvate,98%
- ETHYL PYRUVATE, NATURAL
- Natural Ethyl pyruvate
- EthylPyruvate>
- Ethyl Pyruvate,99%
- Ethyl pyruvate USP/EP/BP
- ETHYL PYRUVIATE
- STEAROY
- PAEE
- PYRUVIC ACID ETHYL ESTER
- ETHYL 2-OXOPROPANOATE
- ETHYL 2-OXOPROPIONATE
- ETHYL 2-OXOPROPRIONATE
- Ethyl pyroracemate
- 2-oxo-propanoic acid ethyl ester
- Ethyl pyruyate
- Litsea cubeba oil 68855-99-2
- Etheyl Pyruvate
- Rufinamide Impurity 15 (Ethyl Pyruvate)
- Ethyl Pyruvate 98% For Synthesis
- 617-35-6
- 617-36-6
- CD3COCOOCH2CH3
- CH3COCOOC2H5
- C2 to C5
- Carbonyl Compounds
- Building Blocks
- Organic Building Blocks
- Esters
- Alphabetical Listings
- ACETYLGROUP
- PyruvicAcidSeries
- Aliphatics
- Intermediates & Fine Chemicals
- Pharmaceuticals
- Certified Natural ProductsFlavors and Fragrances
- E-F
- Flavors and Fragrances
