4-Methyl-2-oxo-2H-chromen-7-yl palmitate

Modify Date: 2024-01-08 14:39:50

4-Methyl-2-oxo-2H-chromen-7-yl palmitate Structure
4-Methyl-2-oxo-2H-chromen-7-yl palmitate structure
Common Name 4-Methyl-2-oxo-2H-chromen-7-yl palmitate
CAS Number 17695-48-6 Molecular Weight 414.578
Density 1.0±0.1 g/cm3 Boiling Point 535.2±45.0 °C at 760 mmHg
Molecular Formula C26H38O4 Melting Point 77ºC(lit.)
MSDS Chinese USA Flash Point 261.8±27.1 °C

 Use of 4-Methyl-2-oxo-2H-chromen-7-yl palmitate


4-Methylumbelliferyl palmitate is an excellent fluorophore for measuring acid lipase in human leukocytes. Acidity and solvent have important influence on its fluorescence. 4-Methylumbelliferyl palmitate exists mainly as neutral molecular form which can be produced strong fluorescence at 445 nm in near neutral aqueous solutions, and exist mainly as anion form which can be produced stronger fluorescence at 445 nm in weak alkaline solutions[1][2].

 Names

Name Palmitic acid 4-methylumbelliferyl ester
Synonym More Synonyms

 4-Methyl-2-oxo-2H-chromen-7-yl palmitate Biological Activity

Description 4-Methylumbelliferyl palmitate is an excellent fluorophore for measuring acid lipase in human leukocytes. Acidity and solvent have important influence on its fluorescence. 4-Methylumbelliferyl palmitate exists mainly as neutral molecular form which can be produced strong fluorescence at 445 nm in near neutral aqueous solutions, and exist mainly as anion form which can be produced stronger fluorescence at 445 nm in weak alkaline solutions[1][2].
Related Catalog
References

[1]. Zhi H, et al. Fluorescent properties of hymecromone and fluorimetric analysis of hymecromone in compound dantong capsule. Journal of Spectroscopy, 2013, 2013.

[2]. Dairaku T, et al. Nishimura M, Endo M, Ohashi T, Eto Y. A practical fluorometric assay method to measure lysosomal acid lipase activity in dried blood spots for the screening of cholesteryl ester storage disease and Wolman disease. Mol Genet Metab. 2014 Feb;111(2):193-6.

 Chemical & Physical Properties

Density 1.0±0.1 g/cm3
Boiling Point 535.2±45.0 °C at 760 mmHg
Melting Point 77ºC(lit.)
Molecular Formula C26H38O4
Molecular Weight 414.578
Flash Point 261.8±27.1 °C
Exact Mass 414.277008
PSA 56.51000
LogP 9.30
Vapour Pressure 0.0±1.4 mmHg at 25°C
Index of Refraction 1.510

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Safety Phrases 24/25
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2932209090

 Customs

HS Code 2932209090
Summary 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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 Synonyms

(4-methyl-2-oxochromen-7-yl) hexadecanoate
4-Methyl-2-oxo-2H-chromen-7-yl palmitate
4-Methylumbelliferyl palmitate
EINECS 241-695-2
Hexadecanoic acid, 4-methyl-2-oxo-2H-1-benzopyran-7-yl ester
MFCD00037612