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Coumarin Dyes

 Coumarins are aromatic lactone compounds and many of them exist in natural plants. A coumarin compound with an electron-donating group on the 7-position shows strong light absorption and luminescence, whereas unsubstituted coumarin compounds are hardly luminescent. This is because intramolecular charge transfer occurs when electron-donating and -withdrawing groups coexist in the coumarin molecule. An introduction of a group on the 3- or 4-position largely controls the wavelength of light absorption and luminescence. Furthermore, an introduction of an electron-withdrawing group on these positions can enhance the intensity of luminescence. Such coumarin dyes are useful for laser dyes emitting blue-green light.
39 Results Found
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Product Number C3072
CAS RN 87349-92-6
Purity / Analysis Method: >98.0%(HPLC)(N)

Product Number C3047
CAS RN 87331-47-3
Purity / Analysis Method: >97.0%(HPLC)

Product Number M2937
CAS RN 57980-07-1
Purity / Analysis Method: >98.0%(GC)(T)

Product Number M0631
CAS RN 91-44-1
Purity / Analysis Method: >98.0%(GC)(T)

Product Number D4970
CAS RN 54711-38-5
Purity / Analysis Method: >98.0%(GC)

Product Number D4462
CAS RN 51473-74-6
Purity / Analysis Method: >98.0%(HPLC)(N)

Product Number D4466
CAS RN 41934-47-8
Purity / Analysis Method: >98.0%(GC)

Product Number D5008
CAS RN 84865-19-0
Purity / Analysis Method: >98.0%(T)(HPLC)

Product Number C3046
CAS RN 114768-72-8
Purity / Analysis Method: >98.0%(HPLC)

Product Number M1862
CAS RN 69169-71-7
Purity / Analysis Method: >98.0%(HPLC)

Product Number C3107
CAS RN 63226-13-1
Purity / Analysis Method: >98.0%(HPLC)(N)

Product Number D3355
CAS RN 87-01-4
Purity / Analysis Method: >98.0%(T)

Product Number:   C3072 | Purity / Analysis Method:   >98.0%(HPLC)(N)

Product Number:   C3047 | Purity / Analysis Method:   >97.0%(HPLC)

Product Number:   M2937 | Purity / Analysis Method:   >98.0%(GC)(T)

Product Number:   M0631 | Purity / Analysis Method:   >98.0%(GC)(T)

Product Number:   D4970 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   D4462 | Purity / Analysis Method:   >98.0%(HPLC)(N)

Product Number:   D4466 | Purity / Analysis Method:   >98.0%(GC)

Product Number:   D5008 | Purity / Analysis Method:   >98.0%(T)(HPLC)

Product Number:   C3046 | Purity / Analysis Method:   >98.0%(HPLC)

Product Number:   M1862 | Purity / Analysis Method:   >98.0%(HPLC)

Product Number:   C3107 | Purity / Analysis Method:   >98.0%(HPLC)(N)

Product Number:   D3355 | Purity / Analysis Method:   >98.0%(T)

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