推荐产品
方案
98%
mp
114-116 °C (lit.)
SMILES字符串
CCOc1ccc2C(C)=CC(=O)Oc2c1
InChI
1S/C12H12O3/c1-3-14-9-4-5-10-8(2)6-12(13)15-11(10)7-9/h4-7H,3H2,1-2H3
InChI key
NKRISXMDKXBVRJ-UHFFFAOYSA-N
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一般描述
7-Ethoxy-4-methylcoumarin (EtOMC), also known as ethyl 4-methylumbelliferyl ether, is a coumarin derivative. Its standard molar energy of combustion is ?5888.0 ± 3.2kJ·mol?1 and standard molar enthalpy of formation in the crystalline phase is ?545.4 ± 3.6kJ·mol?1.EtOMC can be prepared by reacting methyl acetoacetate with 3-ethoxyphenol in the presence of boron trifluoride dihydrate.The fluorescence quenching of EtOMC is more effective in the presence 4-hydroxy-TEMPO (4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl).
应用
7-Ethoxy-4-methylcoumarin may be used in the assay of 4-chlormethyl-7-ethoxycoumarin O-deethylase activity.
储存分类代码
13 - Non Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
新产品
Analysis of fluorescence quenching of coumarin derivatives by 4-hydroxy-TEMPO in aqueous solution.
Zamojc K, et al.
Journal of Fluorescence, 24(3), 713-718 (2014)
Standard molar enthalpies of formation in the crystalline phase of 7-hydroxy-4-methylcoumarin, 7-ethoxy-4-methylcoumarin, and 6-methoxy-4-methylcoumarin.
Amador P, et al.
The Journal of Chemical Thermodynamics, 43(9), 1414-1416 (2011)
Pechmann reaction promoted by boron trifluoride dihydrate.
Stoyanov E and Mezger J.
Molecules (Basel), 10(7), 762-766 (2005)
U D Kuhn et al.
Experimental and toxicologic pathology : official journal of the Gesellschaft fur Toxikologische Pathologie, 50(4-6), 491-496 (1998-10-23)
7-Ethoxycoumarin (EC) is widely used as a model substrate for monooxygenase function, its O-deethylation representing cytochrome P450 (P450) activity mainly of 1A but also of 2B isoforms. Reports on investigations of its own capacity to induce or suppress P450 activities
Rongjing Yang et al.
Se pu = Chinese journal of chromatography, 30(2), 160-164 (2012-06-12)
A rapid analytical method for the determination of five coumarins (coumarin, 7-methoxycoumarin, dihydrocoumarin, 7-methyl coumarin and 7-ethoxy-4-methyl coumarin) in toys by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) has been developed. After ultrasonic extraction in tetrahydrofuran, the samples were analyzed
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