Coumarin 545T

Coumarin 545T (CAS: 155306-71-1) is a coumarin-derived fluorescent compound, featuring a benzothiazolyl substituent and a fused polycyclic structure with tetramethyl groups for enhanced photostability. It is a yellow to orange crystalline powder with excellent fluorescent properties, high quantum yield, and good solubility in organic solvents, widely recognized as a key intermediate in functional materials and fluorescent probes. Coumarin 545T (CAS: 155306-71-1) has a molecular formula of C26H25NO2S and a molecular weight of 415.55, with industrial grade products typically achieving a purity of ≥98%.

10- (2-Benzothiazolyl) -2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H- (1) benzopyropyrano (6,7-8-I, j) quinolizin-11-one, Coumarin 545T, 7,7-Tetramethyl-10- (2-benzothiazolyl) -2,3,6,7-tetrahydro-1H,5H,11H-benzopyropyrano[6,7,8-ij]quinolizin-11-one, 1H,5H,11H- (1) Benzopyropyrano (6,7-8-i, j) quinolizin-11-one, 10- (2-benzothiazolyl) -2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-, 2,3,6,7-Tetrahydro-1,1,7,7-tetramethyl-10- (2-benzothiazolyl) -1H,5H,11H-benzopyropyrano[6,7,8-ij]quinolizin-11-one

1. Organic Optoelectronic Devices: Coumarin 545T (CAS: 155306-71-1) is widely used as a fluorescent emitter in organic light-emitting diodes (OLEDs) and organic lasers, due to its strong light absorption and emission capabilities, which effectively improve the luminous efficiency and stability of optoelectronic devices. 2. Fluorescent Probes and Imaging: Coumarin 545T (CAS: 155306-71-1) serves as a high-performance fluorescent probe in biological imaging, environmental monitoring, and chemical detection, enabling high-sensitivity detection of target substances with minimal interference from background fluorescence. 3. Functional Dyes and Pigments: Coumarin 545T (CAS: 155306-71-1) is applied in the production of fluorescent dyes for plastics, fibers, and coatings, offering bright color, good light fastness, and excellent compatibility with various substrates. 4. Fine Chemical Intermediates: Coumarin 545T (CAS: 155306-71-1) is utilized in the synthesis of pharmaceutical intermediates and specialty chemicals, providing a unique fluorescent structural skeleton for the development of functional compounds with targeted properties.

≥98%

C26H25NO2S

415.55

2 years under proper storage

Yellow to orange crystalline powder

1.28 g/cm3 (25°C, approximate)

198-202°C