103217
光色素
别名:
7,8-二甲基四氧嘧啶
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关于此项目
经验公式（希尔记法）:
C12H10N4O2
化学文摘社编号:
分子量:
242.23
NACRES:
NA.47
PubChem Substance ID:
UNSPSC Code:
12171500
EC Number:
214-120-8
MDL number:
InChI key
ZJTJUVIJVLLGSP-UHFFFAOYSA-N
InChI
1S/C12H10N4O2/c1-5-3-7-8(4-6(5)2)14-10-9(13-7)11(17)16-12(18)15-10/h3-4H,1-2H3,(H2,14,15,16,17,18)
SMILES string
Cc1cc2nc3NC(=O)NC(=O)c3nc2cc1C
form
powder, crystals or chunks
technique(s)
titration: suitable
mp
>300 °C (lit.)
λmax
350 nm
392 nm (2nd)
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
Quality Level
Application
光色素可用作荧光探针、金属离子传感器，也可用于生物污染物的失活。它也可用于存储和半导体设备。
General description
光色素（7,8-二甲基四氧嘧啶）是核黄素的天然代谢产物。它是核黄素降解的荧光光产物。它是有效的光敏剂和荧光染料。
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Iqbal Ahmad et al.
International journal of pharmaceutics, 280(1-2), 199-208 (2004-07-22)
The kinetics of photolysis of aqueous riboflavin solutions on UV and visible irradiation has been studied in the pH range 1-12 using a specific multicomponent spectrophotometric method for the simultaneous determination of riboflavin and its major photoproducts (formylmethylflavin, lumichrome and
Xiancheng Zeng et al.
The Journal of chemical physics, 130(16), 164111-164111 (2009-05-02)
A quantum mechanical/molecular mechanical minimum free energy path (QM/MM-MFEP) method was developed to calculate the redox free energies of large systems in solution with greatly enhanced efficiency for conformation sampling. The QM/MM-MFEP method describes the thermodynamics of a system on
Dorota Prukała et al.
The journal of physical chemistry. A, 116(28), 7474-7490 (2012-06-27)
Lumichrome photophysical properties at different pH were characterized by UV-vis spectroscopy and steady-state and time-resolved fluorescence techniques, in four forms of protonation/deprotonation: neutral form, two monoanions, and dianion. The excited-state lifetimes of these forms of lumichrome were measured and discussed.
Wajahatullah Khan et al.
Journal of plant physiology, 165(13), 1342-1351 (2008-01-15)
The foliar application of Nod factor [Nod Bj V (C(18:1), MeFuc)] enhanced (P<0.05) the photosynthetic rate of corn; the increases were 36%, 23% and 12% for 10(-6), 10(-8) and 10(-10)M treated plants, respectively. Similarly, lumichrome at 10(-5) and 10(-6)M stimulated
Lumichrome and phenyllactic acid as chemical markers of thistle (Galactites tomentosa Moench) honey.
Carlo I G Tuberoso et al.
Journal of agricultural and food chemistry, 59(1), 364-369 (2010-12-04)
HPLC-DAD-MS/MS chromatograms of thistle (Galactites tomentosa Moench) unifloral honeys, previously selected by sensory evaluation and melissopalynological analysis, showed high levels of two compounds. One was characterized as phenyllactic acid, a common acid found in honeys, but the other compound was
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