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109959

Sigma-Aldrich

2-乙基丁酸

99%

别名:

二乙基醋酸

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100 ML
$63.90
1 L
$457.00

$63.90

预计发货时间2025年5月02日详情

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100 ML
$63.90
1 L
$457.00

About This Item

线性分子式:
(C2H5)2CHCO2H
CAS号:
88-09-5
分子量:
116.16
Beilstein:
1098634
EC 号:
201-796-4
MDL编号:
MFCD00002670
UNSPSC代码:
12352100
PubChem化学物质编号:
24846948
NACRES:
NA.22

$63.90

预计发货时间2025年5月02日详情

获取大包装报价

蒸汽压

0.08 mmHg ( 20 °C)

质量水平

100

方案

99%

折射率

n20/D 1.413 (lit.)

沸点

99-101 °C/18 mmHg (lit.)

mp

−16-−13 °C (lit.)

密度

0.92 g/mL at 25 °C (lit.)

官能团

carboxylic acid

SMILES字符串

CCC(CC)C(O)=O

InChI

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

InChI key

OXQGTIUCKGYOAA-UHFFFAOYSA-N

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应用

2-乙基丁酸用作测定人工湿地废水中挥发性脂肪酸 (VFA) 的内标物 [1]。用于牛奶及奶制品中游离及脂肪酸的测定，采用直接衍生化 HPLC 法 [2]。

象形图

Skull and crossbonesHealth hazard
GHS06,GHS08

警示用语：

Danger

危险分类

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

靶器官

Blood,Liver,Kidney

储存分类代码

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

WGK

WGK 1

闪点(°F)

188.6 °F - closed cup

闪点(°C)

87 °C - closed cup

个人防护装备

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
STBL0368
STBL0924
STBK3499
STBK2748
STBK0660

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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
Jennifer M Monk et al.
Nutrients, 13(3) (2021-03-04)
Cooked common beans (Phaseolus vulgaris) improve intestinal health in lean mice and attenuate intestinal dysbiosis and inflammation when consumed concurrent with obesity development. We determined the effects of a high-fat (HF) bean supplemented diet in mice with established obesity (induced
Yung-Tsung Chen et al.
Nutrients, 13(7) (2021-07-03)
Consumption of different types of high-calorie foods leads to the development of various metabolic disorders. However, the effects of multi-strain probiotics on different types of diet-induced obesity and intestinal dysbiosis remain unclear. In this study, mice were fed a control
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
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  1. 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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  2. 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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