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109959

Sigma-Aldrich

2-Ethylbuttersäure

99%

Synonym(e):

Diethylessigsäure

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€ 37,70
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€ 290,00

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100 ML
€ 37,70
1 L
€ 290,00

About This Item

Lineare Formel:
(C2H5)2CHCO2H
CAS-Nummer:
88-09-5
Molekulargewicht:
116.16
Beilstein:
1098634
EG-Nummer:
201-796-4
MDL-Nummer:
MFCD00002670
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24846948
NACRES:
NA.22

€ 37,70

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Dampfdruck

0.08 mmHg ( 20 °C)

Qualitätsniveau

100

Assay

99%

Brechungsindex

n20/D 1.413 (lit.)

bp

99-101 °C/18 mmHg (lit.)

mp (Schmelzpunkt)

−16-−13 °C (lit.)

Dichte

0.92 g/mL at 25 °C (lit.)

Funktionelle Gruppe

carboxylic acid

SMILES String

CCC(CC)C(O)=O

InChI

1S/C6H12O2/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3,(H,7,8)

InChIKey

OXQGTIUCKGYOAA-UHFFFAOYSA-N

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Anwendung

2-Ethylbutyric acid is used as the internal standard for determining volatile fatty acids (VFAs) in wastewater from the constructed wetlands[1]. It is used in the determination of both free and fatty acids in milk and milk products by HPLC method with direct derivatisation[2].

Piktogramme

Skull and crossbonesHealth hazard
GHS06,GHS08

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 3 Dermal - Eye Irrit. 2 - Skin Irrit. 2 - STOT RE 2 Oral

Zielorgane

Blood,Liver,Kidney

Lagerklassenschlüssel

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flammpunkt (°F)

188.6 °F - closed cup

Flammpunkt (°C)

87 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
STBL0368
STBL0924
STBK3499
STBK2748
STBK0660

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Yi Liu et al.
Food & function, 7(9), 3772-3781 (2016-10-08)
Indigestible resistant starches (RS) are substrates for gut-microbial metabolism and have been shown to attenuate intestinal inflammation but the supporting evidence is inconsistent and lacks mechanistic explanation. We have recently reported dietary RS type 4 (RS4) induced improvements in immunometabolic
Lin Feng et al.
Journal of chromatographic science, 46(7), 577-584 (2008-08-23)
A headspace solid-phase microextraction (HS-SPME) followed by gas chromatography coupled to flame ionization detector (GC-FID) is developed for the direct determination of volatile fatty acids (VFAs) in wastewater from constructed wetlands. Through the investigation on extraction behavior of different coatings
Yadong Zhong et al.
The British journal of nutrition, 113(10), 1558-1570 (2015-04-14)
Mixed-linkage β-glucans are fermented by the colon microbiota that give rise to SCFA. Propionic and butyric acids have been found to play an important role in colonic health, as well as they may have extraintestinal metabolic effects. The aim of
Evdokia K Mitsou et al.
Molecules (Basel, Switzerland), 25(12) (2020-06-24)
Alterations of gut microbiota are evident during the aging process. Prebiotics may restore the gut microbial balance, with β-glucans emerging as prebiotic candidates. This study aimed to investigate the impact of edible mushrooms rich in β-glucans on the gut microbiota
Evangelia N Kerezoudi et al.
Food & function, 12(4), 1529-1546 (2021-02-02)
Recent data have highlighted the role of the gut microbiota and its several metabolites in maintaining bone health. Thus, gut microbiota manipulation, e.g., by prebiotics, might offer a plausible target in the fight against bone degenerative diseases. This study aimed
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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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