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02529

Supelco

2-乙基己酸

analytical standard

同義詞:

异辛酸

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About This Item

線性公式:
CH3(CH2)3CH(C2H5)CO2H
CAS號碼:
分子量::
144.21
Beilstein:
1750468
EC號碼:
MDL號碼:
分類程式碼代碼:
41116107
PubChem物質ID:
NACRES:
NA.24

等級

analytical standard

品質等級

蒸汽密度

4.98 (vs air)

蒸汽壓力

<0.01 mmHg ( 20 °C)
10 mmHg ( 115 °C)

化驗

≥99.5% (GC)

自燃溫度

699 °F

儲存期限

limited shelf life, expiry date on the label

expl. lim.

1.04 %, 135 °F
8.64 %, 188 °F

技術

HPLC: suitable
gas chromatography (GC): suitable

折射率

n20/D 1.425 (lit.)
n20/D 1.425

bp

228 °C (lit.)

密度

0.903 g/mL at 25 °C (lit.)

應用

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care

格式

neat

SMILES 字串

CCCCC(CC)C(O)=O

InChI

1S/C8H16O2/c1-3-5-6-7(4-2)8(9)10/h7H,3-6H2,1-2H3,(H,9,10)

InChI 密鑰

OBETXYAYXDNJHR-UHFFFAOYSA-N

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一般說明

2-乙基己酸是邻苯二甲酸(2-乙基己基)酯(DEHP)代谢产物之一。

應用

2-乙基己酸已被用作通过气相色谱−质谱(GC-MS)在选择离子监测(SIM)模式下测定人尿液中2-乙基己酸的标准品。可作为GC-MS技术分析葡萄果皮中香气成分2-乙基己酸的标准品,动态顶空(DHS)进样、直接溶剂萃取(DSE)和真空同时水蒸气蒸馏−溶剂萃取(V−SDE)结合GC-MS分析泰国酱油中2-乙基己酸的标准品。

其他說明

离子迁移率:136.0 Å2 [M-H]-的TWCCSN2

碰撞截面(CCS)测量由Waters公司完成,使用的是SYNAPT XS质谱仪。
如需离子迁移率如何测量离子CCS的描述和概述,请访问 ims.waters.com
关于SYNAPT XS质谱仪的更多信息可以在 IMS microsite产品网页上找到。

TWCCS的测量值预计在该参考值的2%以内。

P/N 02529是Waters Extractables & Leachables UNIFI科学图书馆的一部分,可从 Waters Marketplace下载。

象形圖

Health hazard

訊號詞

Danger

危險聲明

危險分類

Repr. 1B

儲存類別代碼

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

水污染物質分類(WGK)

WGK 1

閃點(°F)

237.2 °F - closed cup

閃點(°C)

114 °C - closed cup

個人防護裝備

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


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Simultaneous analysis of the di (2-ethylhexyl) phthalate metabolites 2-ethylhexanoic acid, 2-ethyl-3-hydroxyhexanoic acid and 2-ethyl-3-oxohexanoic acid in urine by gas chromatography-mass spectrometry.
Wahl, et al.
Journal of Chromatography. B, Biomedical Applications, 758(2), 213-219 (2001)
Optimization and evaluation of a procedure for the gas chromatographic-mass spectrometric analysis of the aromas generated by fast acid hydrolysis of flavor precursors extracted from grapes.
Ibarz, et al.
Journal of Chromatography A, 1116(1-2), 217-229 (2006)
Asymmetric synthesis and teratogenic activity of (R)-and (S)-2-ethylhexanoic acid, a metabolite of the plasticizer di-(2-ethylhexyl) phthalate.
Hauck R-S, et al.
Life Sciences, 46(7), 513-518 (1990)
Comparison of determination method for volatile compounds in Thai soy sauce.
Wanakhachornkrai P and Lertsiri S
Food Chemistry, 83(4), 619-629 (2003)
David P Labeda et al.
Current microbiology, 49(2), 133-135 (2004-08-07)
The results of a screen for microbial esterases that have enantioselective activity for the hydrolysis of butyl 2-ethylhexanoate are described. The preliminary screen determined that a nocardioform bacterial strain, NRRL 21057, exhibited significant activity in preferentially hydrolyzing the S enantiomer

條款

In this study, SPME was used for the analysis of free fatty acids in Parmesan cheese using a 65 μm Carbowax/divinylbenzene (DVB) SPME fiber. Headspace extraction of the cheese sample was conducted at 65 °C for 15 minutes and analyzed by GC with FID detection. SPME is ideal for analyzing the volatiles associated with solid food samples. The phase chemistry of the Nukol GC column provides excellent peak shape of acidic compounds.

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