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Merck
CN

W297003

Pyruvic acid

≥97%, FG

Synonym(s):

α-Ketopropionic acid, 2-Oxopropionic acid

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About This Item

Linear Formula:
CH3COCOOH
CAS Number:
127-17-3
Molecular Weight:
88.06
FEMA Number:
2970
Council of Europe no.:
19
UNSPSC Code:
12164502
eCl@ss:
39021320
PubChem Substance ID:
24901426
Flavis number:
8.019
EC Number:
204-824-3
NACRES:
NA.21
MDL number:
MFCD00002585
Beilstein/REAXYS Number:
506211
Organoleptic:
caramel; acidic; sour
Grade:
FG, Fragrance grade, Kosher
Biological source:
synthetic
Agency:
follows IFRA guidelines, meets purity specifications of JECFA
Food allergen:
no known allergens

Key Documents

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biological source

synthetic

Quality Level

300, 400

grade

FG, Fragrance grade, Kosher

agency

follows IFRA guidelines, meets purity specifications of JECFA

reg. compliance

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

assay

≥97%

refractive index

n20/D 1.428 (lit.)

bp

165 °C (lit.)

mp

11-12 °C (lit.)

density

1.267 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

organoleptic

caramel; acidic; sour

storage temp.

2-8°C

SMILES string

CC(=O)C(O)=O

InChI

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

InChI key

LCTONWCANYUPML-UHFFFAOYSA-N

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Related Categories

General description

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.
Natural occurrence: Asparagus, beef, sake, Virginia tobacco, wheat bread.

Biochem/physiol Actions

Taste at 5 ppm

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1C

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

183.2 °F - closed cup

flash_point_c

84 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS8523
SHBS8522
SHBS2495
SHBR5298
SHBR3477

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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)
Sarah C Atkinson et al.
Plant molecular biology, 81(4-5), 431-446 (2013-01-29)
Lysine is one of the most limiting amino acids in plants and its biosynthesis is carefully regulated through inhibition of the first committed step in the pathway catalyzed by dihydrodipicolinate synthase (DHDPS). This is mediated via a feedback mechanism involving
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.
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Global Trade Item Number

SKUGTIN
W297003-SAMPLE-K04061838192516
W297003-5KG-K04061838257567
W297003-1KG-K04061838257550
W297003-25KG-K04061837518140
W297003-250G-K04061838115461

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