主要文件

查看所有文档

43861

呋喃

Name: 呋喃
Brand: SIAL

analytical standard

登录查看组织和合同定价。

选择尺寸

变更视图

关于此项目

经验公式（希尔记法）:

C₄H₄O

化学文摘社编号:

110-00-9

分子量:

68.07

UNSPSC Code:

85151701

NACRES:

NA.24

PubChem Substance ID:

329756415

EC Number:

203-727-3

Beilstein/REAXYS Number:

103221

MDL number:

MFCD00003222

技术服务

需要帮助？我们经验丰富的科学家团队随时乐意为您服务。

让我们为您提供帮助

属性

grade

analytical standard

Quality Level

100

vapor density

2.35 (vs air)

vapor pressure

1672 mmHg ( 55 °C), 31.66 psi ( 55 °C), 493 mmHg ( 20 °C), 9.22 psi ( 20 °C)

assay

≥98.0% (GC)

shelf life

limited shelf life, expiry date on the label

contains

~0.025% 2,6-di-tert-4-methylphenol as stabilizer

expl. lim.

14.3 %

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

refractive index

n20/D 1.421

bp

32 °C/758 mmHg (lit.)

density

0.936 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
food and beverages
personal care

format

neat

storage temp.

2-8°C

SMILES string

c1ccoc1

InChI

1S/C4H4O/c1-2-4-5-3-1/h1-4H

InChI key

YLQBMQCUIZJEEH-UHFFFAOYSA-N

说明

General description

Furan is a clear and colorless liquid, and a bimolecular heterocycle, which can be used to trap unstable intermediates containing highly reactive species, via Diels-Alder cycloaddition reactions.

Furan, a naturally occurring compound associated with the flavor of food, is found at very low levels in a variety of food products and beverages. It finds applications as a solvent for resins and lacquers as well as in the preparation of organic compounds, in pharmaceuticals, etc. Furan is also reportedly identified in heat treated food products, including cooked chicken, fish protein concentrate, caramel back, canned meat, bread, coffee, etc.

This compound is listed in the SVHC (Substances of very high concern) candidate list of ECHA (European Chemicals Agency)

Application

Furan can undergo Diels-Alder [4+2] cycloaddition reaction with maleic anhydride to form the corresponding exo and endo furan-maleic anhydride adducts.

Furan may be used as an analytical reference standard for the quantification of the analyte in heat-processed foods using gas chromatography-mass spectrometry (GC-MS).

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.