39255
4-二甲基氨基-4′-硝基苯乙烯
≥99.8% (T)
别名:
N,N-Dimethyl-4′-nitro-4-stilbenamine, DANS
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关于此项目
线性分子式:
(CH3)2NC6H4CH=CHC6H4NO2
化学文摘社编号:
分子量:
268.31
UNSPSC Code:
12352108
NACRES:
NA.32
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
1379389
InChI
1S/C16H16N2O2/c1-17(2)15-9-5-13(6-10-15)3-4-14-7-11-16(12-8-14)18(19)20/h3-12H,1-2H3/b4-3+
SMILES string
CN(C)c1ccc(\C=C\c2ccc(cc2)[N+]([O-])=O)cc1
InChI key
NVLSIZITFJRWPY-ONEGZZNKSA-N
assay
≥99.8% (T)
form
solid
mp
256-259 °C (lit.), 256-259 °C
fluorescence
λex 500 nm; λem ~700 nm in methylene chloride
Quality Level
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Application
4-Dimethylamino-4′-nitrostilbene (DANS, DMANS) may be used as a proton/acid indicator and physical chemistry probe to study state energy and photoexcitation dynamics of molecules.
Other Notes
Standard for the correction of emission of fluorescence spectrometers
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
I D Petsalakis et al.
The journal of physical chemistry. A, 114(17), 5580-5587 (2010-04-14)
A theoretical investigation on the electronic structure of 4-dimethylamino-4'-nitrostilbene (DANS), 4-(dicyanomethylene)-2-methyl-6-p-(dimethylamino) styryl-4H-pyran (DCM), and their protonated forms is presented in an effort to rationalize recent experimental results on the tuning of the emitted color of organic light-emitting diodes through photochemically
E. Lippert et al.
Z. Anal. Chem., 170, 1-1 (1959)
Charles A Schmuttenmaer
Science progress, 85(Pt 2), 175-197 (2002-09-10)
The direct measurement of intramolecular electron transfer through detection of the electromagnetic (EM) waveform that is emitted during this process is reviewed. The waveform is detected in the time-domain via free-space electro-optic sampling and then related to the dynamics of
Takakazu Nakabayashi et al.
Journal of the American Chemical Society, 127(19), 7041-7052 (2005-05-12)
External electric field effects on state energy and photoexcitation dynamics have been examined for para-substituted and unsubstituted all-trans-diphenylpolyenes doped in a film, based on the steady-state and picosecond time-resolved measurements of the field effects on absorption and fluorescence. The substitution
Antonios M Douvas et al.
Inorganic chemistry, 48(11), 4896-4907 (2009-05-02)
The capability of ammonium 18-molybdodiphosphate, (NH(4))(6)P(2)Mo(18)O(62) (Mo(18)(6-)), and ammonium 18-tungstodiphosphate, (NH(4))(6)P(2)W(18)O(62) (W(18)(6-)), to photochemically generate acid within films of a polymer with hydroxylic functional groups (namely, within poly(2-hydroxyethyl methacrylate) (PHEMA) films) is demonstrated. Upon UV irradiation, both 2:18 polyoxometalates (POMs)
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