CAS 41175-45-5 Coumarin 478 - Materials / Alfa Chemistry

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Coumarin Dyes

Coumarin 478

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Catalog Number

ACM41175455-2

Product Name

Coumarin 478

Structure

CAS

41175-45-5

Category

Coumarin Dyes

Synonyms

2,3,6,7,10,11-Hexahydro-1H,5H-cyclopenta[3,4][1]benzopyrano[6,7,8-ij]quinolizin-12(9H)-one

Description

Alfa Chemistry offers high-purity Coumarin 478 products for various research purposes. Please contact us by email if you do not find the specification you are looking for on this page.

IUPAC Name

3-oxa-16-azapentacyclo[10.7.1.02,10.05,9.016,20]icosa-1(20),2(10),5(9),11-tetraen-4-one

Molecular Weight

281.36

Molecular Formula

C18H19NO2

Canonical SMILES

C1CC2=C(C1)C(=O)OC3=C2C=C4CCCN5C4=C3CCC5

InChI

InChI=1S/C18H19NO2/c20-18-13-6-1-5-12(13)15-10-11-4-2-8-19-9-3-7-14(16(11)19)17(15)21-18/h10H,1-9H2

InChI Key

LLSRPENMALNOFW-UHFFFAOYSA-N

Boiling Point

538.4 ± 50.0° °C

Melting Point

145.0 to 151.0 °C

Purity

>98.0%(HPLC)

Density

1.32 ± 0.1 g/ml

Appearance

Light orange to Yellow to Green powder to crystal

Application

Such coumarin dyes are useful for laser dyes emitting blue-green light.

Storage

-20 °C in the dark

Complexity

511

Covalently-Bonded Unit Count

EC Number

255-246-3

Exact Mass

281.141579g/mol

Features And Benefits

Coumarins are aromatic lactone compounds, many of which are found in natural plants. Coumarin compounds having an electron donating group at the 7-position show strong light absorption and emission, whereas unsubstituted coumarin compounds hardly emit light. This is because intramolecular charge transfer occurs when both electron-donating and electron-withdrawing groups are present in the coumarin molecule. The introduction of groups at the 3- or 4-position largely controls the wavelength of light absorption and emission. Furthermore, the introduction of electron-withdrawing groups at these positions can enhance the luminescence intensity.

Formal Charge

Heavy Atom Count

MDL Number

MFCD00041949

Monoisotopic Mass

281.141579g/mol

NSC Number

290434

Rotatable Bond Count

Storage Conditions

Store at room temperature and dry

UNII