摘要:
A pentamethine cyanine fluorescent dye having the general formula I, a synthetic method and a use thereof are disclosed. In the general formula, X is CHO or CHCR3R4; R1 and R2 are independently selected from the group consisting of (CH2)nR7 and et al.; R3 and R4 are independently selected from the group consisting of CN, COOH and COOR16; R5, R6 and R7 are independently selected from the group consisting of H, SO3R10 and COOR11; R8 is H or C1-18 alkyl; R9 is H or CH3; R10 is N(R12R13R14R15); R11 is C1-18 alkyl; R12, R13, R14, R15 and R16 are independently selected from the group consisting of H, C1-18 alkyl, (CH2)mOR8 and (CHR9CH2O)pR8; Y− is halogen anion or OTs−; and n, m and p are integers of 0-18. The dye can be utilized to sensitively detect viscosity of micro-environment such as tissues and cells.
摘要翻译:公开了具有通式I的合成方法及其用途的五甲代花青荧光染料。 在通式中,X是CHO或CHCR3R4; R 1和R 2独立地选自(CH 2)n R 7等。 R3和R4独立地选自CN,COOH和COOR16; R5,R6和R7独立地选自H,SO3R10和COOR11; R8是H或C1-18烷基; R9为H或CH3; R10为N(R12R13R14R15); R11为C1-18烷基; R 12,R 13,R 14,R 15和R 16独立地选自H,C 1-18烷基,(CH 2)mOR 8和(CHR 9 CH 2 O)p R 8; Y-是卤素阴离子或OTs-; 并且n,m和p是0-18的整数。 染料可用于敏感地检测微环境如组织和细胞的粘度。
摘要:
The invention is related to a weather-resistant dye and use thereof, which contains in molecules thereof not only chromophoric parent D, but also electron-accepting group Q which is linked with dye parent D through non-conjugated carbon link L to constitute D-L-Q dye molecule; the electron-accepting group Q has such a HOMO energy level that is lower than the HOMO energy level of the dye chromophoric parent D. The dye has sun-resistance and anti-ozone performances, which can be used as colorant in the ink, dope, lacquer, toner powder for laser printing, marker, paper, fabric, glass, porcelain or polymer.
摘要:
The present invention provides a novel category of naphthalene-based two-photon fluorescent probes having a general formula I, wherein: X is selected from the X1, X2, X3 and X4; The mentioned two-photon fluorescent probes have a low fluorescence background in the non-tumor cells and tissues, and have a strong and specific fluorescent signal in the tumor cells and tissues. These probes have a certain level of water-solubility, while having good membrane permeability. In addition, they have a bigger effective two-photon absorption cross section. The compounds of the present invention also have a lower biotoxicity, phototoxicity and photobleaching. There is sufficient difference between the spectral range thereof and that of a biological sample.
摘要:
The present invention discloses a fluorescent probe compound which solved the problem of fluorescence quenching by Pd2+, and its preparation method and use as well. Excitation and emission wavelengths of the probe compound are in visible light region. The probe compound is highly sensitive and displays good selectivity for Pd2+ in near-neutral pH range. In detection of Pd2+ in 0-10 ppb level, fluorescence is evidently enhanced, and Pd2+ in the level as low as 5 nM can be detected. Fluorescence intensity is well linearly correlated to Pd2+ concentration. The probe compound can be used for detection of contaminating palladium and residual palladium in drug, soil, water sample and reactor.
摘要:
The present invention discloses a fluorescent probe compound which solved the problem of fluorescence quenching by Pd2+, and its preparation method and use as well. Excitation and emission wavelengths of the probe compound are in visible light region. The probe compound is highly sensitive and displays good selectivity for Pd2 in near-neutral pH range. In detection of Pd2 in 0-10 ppb level, fluorescence is evidently enhanced, and Pd2 in the level as low as 5 nM can be detected. Fluorescence intensity is well linearly correlated to Pd2 concentration. The probe compound can be used for detection of contaminating palladium and residual palladium in drug, soil, water sample and reactor.
摘要:
A fluorescence probe compound, its preparation method and use are provided. The said compound is represented by the general formula I, wherein, each of R1, R2, R3 and R4 is individually selected from the group consisting of H, C1-18 alkyl, phenyl substituted by C1-18 alkyl, naphthyl substituted by C1-18 alkyl, halogen, OR9, N(R9)2, cyano group, (CH2CH2O)nH, (CH2)mCOOH and (CH2)mSO3M; each of R5, R6, R7 and R8 is individually selected from the group consisting of H, C1-18 alkyl, phenyl substituted by C1-18 alkyl, naphthyl substituted by C1-18 alkyl, halogen, hydroxyl, mercapto group, cyano group, nitro group, heterocyclic group, halogenated alkyl, alkyl amino group, acylamino group, OR9, N(R9)2, (CH2CH2O)nH, (CH2)mCOOH and (CH2)mSO3M; R9 represents H, C1-18 alkyl, phenyl substituted by C1-18 alkyl, naphthyl substituted by C1-18 alkyl, halogen, cyano group, (CH2CH2O)nH, (CH2)mCOOH or (CH2)mSO3M; n and m each individually represent integer of 0 to 8; M represents H, K, Na, Li, NH4, NH3R10, NH2(R10)2, NH(R10)3 or N(R10)4; and R10 represents H, C1-6 alkyl or CH2CH2OH. The compound is useful for detecting mercury ion.
摘要翻译:提供荧光探针化合物及其制备方法和用途。 所述化合物由通式I表示,其中R1,R2,R3和R4各自独立地选自H,C1-18烷基,被C1-18烷基取代的苯基,被C1- 18烷基,卤素,OR 9,N(R 9)2,氰基,(CH 2 CH 2 O)n H,(CH 2)m COOH和(CH 2)m SO 3 M; R5,R6,R7和R8各自独立地选自H,C1-18烷基,被C1-18烷基取代的苯基,被C1-18烷基取代的萘基,卤素,羟基,巯基,氰基, 硝基,杂环基,卤代烷基,烷基氨基,酰氨基,OR9,N(R9)2,(CH2CH2O)nH,(CH2)mCOOH和(CH2)mSO3M; R9代表H,C1-18烷基,被C1-18烷基取代的苯基,被C1-18烷基取代的萘基,卤素,氰基,(CH2CH2O)nH,(CH2)mCOOH或(CH2)mSO3M; n和m各自独立地表示0〜8的整数。 M代表H,K,Na,Li,NH4,NH3R10,NH2(R10)2,NH(R10)3或N(R10) R 10表示H,C 1-6烷基或CH 2 CH 2 OH。 该化合物可用于检测汞离子。
摘要:
A pentamethine cyanine fluorescent dye with N-substituting at β-position of conjugated chain is disclosed. The dye reacts with biosubstrate including protein, liposome and DNA, and shows excellent selectivity. It has good living cell membrane permeability and shows good selectivity in living cell staining In addition, the dye has good stability and low background fluorescence, and can be used together with other fluorescent dyes having consistent wavelengths for single-channel excitation and multi-channel detection. The dye can be used in the fields of protein labeling and detecting, fluorescence immunoassay and living cell selective imaging and the like.
摘要:
The present invention provides a category of cyanine dyes having the following general structural Formula I, wherein X is defined as C(CH3)2, O, S or Se; m is an integer from 1 to 18, R1 and R2 are each independently chosen from H, C1-18alkyl, OR7, C1-6alkyl-OR7 or halogen; R3 is pyrrolyl, imidazolyl, piperidinyl, piperazinyl, morpholinyl, guanidino, NHR5 or N(R6)2; R4 is C1-18alkyl, benzyl or (CH2)mR3; R5 is saturated and/or unsaturated, straight-chained and/or branched-chained C1-18alkyl, hydroxy alkyl, mercapto-alkyl, amino alkyl, acyl, phenyl, naphthyl or benzyl; R6 is a C2-18alkyl; R7 is H or a C1-18alkyl; Y− is an anion. The mentioned compounds can be applied to staining biological samples, to the fields of nucleic acids labeling, blood cell analysis, clinical diagnosis, immunological assays and etc.
摘要:
The disclosure provides fluorescence probe compounds of formula I, their preparation methods and applications. These compounds are useful in detecting mercury ions.
摘要:
The present disclosure provides the asymmetric cyanine fluorescent dyes of formula I in which X, n, R1, R2, R3, R4, R5 and Y− are as defined in the specification. The present disclosure also provides conjugates of the fluorescent dyes, methods for preparation thereof, compositions comprising the fluorescent dyes, and methods for staining biological samples using the fluorescent dyes and compositions thereof.