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W297003

Sigma-Aldrich

Brenztraubensäure

≥97%, FG

Synonym(e):

α-Ketopropionsäure, 2-Oxopropionsäure

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About This Item

Lineare Formel:
CH3COCOOH
CAS-Nummer:
127-17-3
Molekulargewicht:
88.06
FEMA-Nummer:
2970
Beilstein:
506211
EG-Nummer:
204-824-3
CoE-Nummer:
19
MDL-Nummer:
MFCD00002585
UNSPSC-Code:
12164502
eCl@ss:
39021320
PubChem Substanz-ID:
24901426
Flavis-Nummer:
8.019
NACRES:
NA.21

Biologische Quelle

synthetic

Qualitätsniveau

400

Qualität

FG
Fragrance grade
Kosher

Agentur

follows IFRA guidelines
meets purity specifications of JECFA

Einhaltung gesetzlicher Vorschriften

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FDA 21 CFR 172.515

Assay

≥97%

Brechungsindex

n20/D 1.428 (lit.)

bp

165 °C (lit.)

mp (Schmelzpunkt)

11-12 °C (lit.)

Dichte

1.267 g/mL at 25 °C (lit.)

Anwendung(en)

flavors and fragrances

Dokumentation

see Safety & Documentation for available documents

Nahrungsmittelallergen

no known allergens

Allergener Duftstoff

no known allergens

Organoleptisch

caramel; acidic; sour

Lagertemp.

2-8°C

SMILES String

CC(=O)C(O)=O

InChI

1S/C3H4O3/c1-2(4)3(5)6/h1H3,(H,5,6)

InChIKey

LCTONWCANYUPML-UHFFFAOYSA-N

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Allgemeine Beschreibung

Natural occurrence: Asparagus, beef, sake, Virginia tobacco, wheat bread.
Pyruvic acid is the key component formed during the hydrolysis of flavor-precursors called S-alk(en)yl-L-cysteine-sulfoxides in onion tissues by allinase during maceration or chopping. The amount of pyruvic acid formed is used as a measure for onion pungency.

Biochem./physiol. Wirkung

Taste at 5 ppm

Piktogramme

Corrosion
GHS05

Signalwort

Danger

H-Sätze

H314

Gefahreneinstufungen

Eye Dam. 1 - Skin Corr. 1C

Lagerklassenschlüssel

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flammpunkt (°F)

183.2 °F - closed cup

Flammpunkt (°C)

84 °C - closed cup

Persönliche Schutzausrüstung

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Die Dokumentenbibliothek aufrufen

Development of an automated system for pyruvic acid analysis in onion breeding.
Yoo KS & Pike LM.
Sci. Hortic., 82(3), 193-201 (1999)
Onion flavor and odor, enzymatic development of pyruvic acid in onion as a measure of pungency.
Schwimmer S & Weston WJ
Journal of Agricultural and Food Chemistry, 9(4), 301-304 (1961)
A simplified pyruvic acid analysis suitable for onion breeding programs.
Yoo KS, et al.
Hortscience: a Publication of the American Society For Horticultural Science Hortscience, 30(6), 1306-1306 (1995)
Emilie A Bard-Chapeau et al.
Nature genetics, 46(1), 24-32 (2013-12-10)
The most common risk factor for developing hepatocellular carcinoma (HCC) is chronic infection with hepatitis B virus (HBV). To better understand the evolutionary forces driving HCC, we performed a near-saturating transposon mutagenesis screen in a mouse HBV model of HCC.
Robert A Jacobs et al.
American journal of physiology. Endocrinology and metabolism, 304(7), E686-E694 (2013-02-07)
Lactate is an important intermediate metabolite in human bioenergetics and is oxidized in many different tissues including the heart, brain, kidney, adipose tissue, liver, and skeletal muscle. The mechanism(s) explaining the metabolism of lactate in these tissues, however, remains unclear.
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Protokolle

HPLC Analysis of Organic Acids Commonly Found in Wine and Beer on TSKgel® OApak-P and OApak-A

Separation of Pyruvic acid, United States Pharmacopeia (USP) Reference Standard; Tartaric acid, United States Pharmacopeia (USP) Reference Standard; Citric acid, United States Pharmacopeia (USP) Reference Standard; Malic acid, United States Pharmacopeia (USP) Reference Standard; L-Pyroglutamic acid, ≥99.0% (T); Lactic acid, United States Pharmacopeia (USP) Reference Standard; Acetic acid, ≥99.99% trace metals basis; Succinic acid, United States Pharmacopeia (USP) Reference Standard

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