7 fluoro 2,1,3 benzoxadiazole 4 sulfonate (ammonium salt)

7-Fluoro-2,1,3-benzoxadiazole-4-sulfonate (SBD-F) is a thiol-reactive fluorogenic probe.1It has been used to quantify the levels of homocysteine, cysteine, and cysteamine in human plasma.2SBD-F displays excitation/emission maxima of 380/515 nm, respectively.1 1.Imai, K., Toyo’oka, T., and Watanabe, Y.A novel fluorogenic reagent for thiols: Ammonium 7-fluorobenzo-2-oxa-1,3-diazole-4-sulfonateAnal. Biochem.128(2)471-473(1983) 2.Ichinose, S., Nakamura, M., Maeda, M., et al.A validated HPLC-fluorescence method with a semi-micro column for routine determination of homocysteine, cysteine and cysteamine, and the relation between the thiol derivatives in normal human plasmaBiomed. Chromatogr.23(9)935-939(2009)

2-(4-Hydroxyphenylazo)benzoicacid 是一种分光光度法探针，可显示与蛋白质结合时的吸收光谱变化，可与牛血清蛋白结合。

2',7'-Dichlorofluorescein diacetate (Diacetyldichlorofluorescein) 是一种可渗透细胞的荧光探针，可用于检测一氧化氮和活性氧以及确定总体氧化应激的程度。

3-Cyano-7-hydroxycoumarin (3-Cyanoumbelliferone) 是一种巨噬细胞游走抑制因子 (MIF) 互变异构酶抑制剂，Ki 为 2.9 μM。3-Cyano-7-hydroxycoumarin 属于香豆素衍生物，可被用作分子探针和荧光染料。

5-Bromo-4-chloro-3-indoxyl-beta-D-cellobioside 是用于检测纤维生物水解酶的显色化合物。

6-ethyl-7-hydroxy-4-methylchromen-2-one 是一种荧光染料

2-Di-1-ASP 是单苯乙烯基染料，对 G-四链体和双链 DNA 具有选择性。它普遍用作双链 DNA 的线粒体染色和凹槽结合荧光探针。

1-Methyl-7-nitroisatoic anhydride (1M7) 是一种能够检测局部核苷酸的试剂。

3-Cyano-7-ethoxycoumarin 是荧光色素 P-450底物，在酶切时获得蓝色荧光产物。

4-Di-1-ASP是一种苯乙烯基染料，适用于标记活脑组织中的神经胶质瘤细胞，常用于分析细胞的结构、活性、增殖以及内吞作用、胞吐和吞噬作用。同时，该染料也被用于观察活细胞的线粒体结构。在显微镜观察下，4-Di-1-ASP能够发射绿色荧光（λex λem= 475 606 nm）。

Pyridine-2-carboxaldehyde 4-nitrophenylhydrazone (PCNPH) 作为一种过氧化物酶显色底物，能与过氧化物酶及过氧化物反应生成紫色吲哚染料。

4-(2-Aminoethylamino)-7-(N,N-dimethylsulfamoyl)benzofuraza是衍生型荧光试剂。

4-Hydrazino-7-nitro-benzofurazan hydrazine adduct 是一种荧光试剂，主要用于蛋白质标记。

Mag-Indo-1 tetrapotassium salt 是不可渗透细胞膜的荧光探针，专用于 Mg2+ 检测。

5(6)-Carboxy-2',7'-dichlorofluorescein，作为一种荧光素，被广泛应用于MRP2囊泡转运实验中，由于其出色的检测和转运特性，成为实验中的理想底物。

Calcium measurement is critical for numerous biological investigations. Fluorescent probes that show spectral responses upon binding calcium have enabled researchers to investigate changes in intracellular free calcium concentrations by using fluorescence microscopy, flow cytometry, fluorescence spectroscopy and fluorescence microplate readers. Fluo-3, pentapotassium salt is most commonly used among the visible light-excitable calcium indicators.

4-Methylumbelliferyl β-D-Galactopyranoside-6-sulfate (sodium salt) (4-MU-Gal-6S) is a fluorogenic substrate used to quantify N-acetylgalactosamine-6-sulphatase (GALNS) activity. 4-MU-Gal-6S is cleaved by GALNS to release the fluorescent moiety 4-MU. 4-MU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low (1.97-6.72) and high (7.12-10.3) pH, respectively, and an emission maximum ranging from 445 to 455 nM, increasing as pH decreases. It has been used to detect Morquio disease type A, a lysosomal storage disorder in which GALNS is deficient. 4-MU-Gal-6S can be used to assess GALNS activity in a very small blood volume to determine the extent of deficiency.

Cal Green 1 is a cell-impermeant fluorescent calcium indicator that is characterized by high quantum yield and low phototoxicity. Its peak excitation and emission wavelengths (506 and 531 nm, respectively) are comparable to standard fluorescein dyes, making Cal Green 1 appropriate for fluorescent microscopy. Cal Green 1 is ~5-fold brighter than fluo-3 at saturating calcium levels.

7-Hydroxycoumarin-3-carboxylic acid, SE is the amine-reactive succinimidyl ester of 7-Hydroxycoumarin-3-carboxylic acid. This coumarin is also increasingly used to label peptides, nucleotides and carbohydrates.

Rhod-2 (sodium salt) is a water-soluble, red fluorescent calcium indicator. It exhibits a significant shift in fluorescence intensity upon calcium binding (ex max = 549 nm; calcium-free v. ex/em max = 552/581 nm; calcium-bound). [1][2] Unlike the UV-excitable indicators fura-2 and indo-1 , there is no accompanying spectral shift.

7-Ethoxy-5-(trifluoromethyl)coumarin is a fluorogenic substrate for cytochrome P450s (CYPs).1Upon O-deethylation by CYPs, 7-hydroxy-4-(trifluoromethyl)coumarin (HFC) is released and its fluorescence can be used to quantify CYP activity. HFC displays excitation/emission maxima of 410/510 nm, respectively. 1.Buters, J.T.M., Schiller, C.D., and Chou, R.C.A highly sensitive tool for the assay of cytochrome P450 enzyme activity in rat, dog and man. Direct fluorescence monitoring of the deethylation of 7-ethoxy-4-trifluoromethylcoumarinBiochem. Pharmacol.46(9)1577-1584(1993)

7-Methoxycoumarin-3-carboxylic acid is used for HPLC derivatization and for developing FRET probes to analyze protease activities.

Dipotassium nitrocatechol sulfate（4-Nitrocatechol sulfate dipotassium salt）作为一种硫酸酯酶显色底物被广泛使用。

10-(4-(Bis(2-acetoxyethyl)amino)phenyl)-BODIPY 505 515 作为一种荧光染料，主要用于Cu2+的检测。

N-(2-Aminooxyethyl)-7-DCCAm (Compound 7) 作为一种荧光染料，主要应用于蛋白质的标记。

2'(3')-O-Anthraniloylguanosine-5'-O-triphosphate（2'-ANT-GTP）及3'-ANT-GTP是荧光GTP衍生物，能够自发进行异构化。2'(3')-ANT-GTP在水中的激发波长为330 nm时，发射最大波长为428 nm。它抑制哺乳动物腺苷酸环化酶1（AC1；在锰存在下Ki=10 nM）、B. anthracis AC毒素水肿因子（在锰和镁存在下Kis分别为4.1 和 13 µM）及B. pertussis AC毒素CyaA（在锰存在下Ki=29 µM）。

2'(3')-O-Anthraniloyladenosine-5'-O-triphosphate（2'-ANT-ATP）与3'-ANT-ATP是荧光ATP衍生物，可自发地进行异构化。在水中，2'(3')-ANT-ATP的激发波长为330 nm时，发射最大波长为428 nm。它对哺乳动物腺苷酸环化酶（AC1）、AC2及AC5显示出抑制作用，抑制常数(Kis)分别为130、640和120 nM。此外，它还能抑制百日咳杆菌腺苷酸环化酶毒素CyaA（在锰和镁存在下，Kis分别为1.3和20 µM）、炭疽杆菌腺苷酸环化酶毒素水肿因子（在锰和镁存在下，Kis分别为0.44和5.15 µM）以及大肠杆菌重组酶A（RecA；Ki = 6.3 µM）。

Calcium measurement is critical for numerous biological investigations. Fluorescent probes that show spectral responses upon binding calcium have enabled researchers to investigate changes in intracellular free calcium concentrations by using fluorescence microscopy, flow cytometry, fluorescence spectroscopy and fluorescence microplate readers. Fluo-3 and Fluo-4 are most commonly used among the visible light-excitable calcium indicators. Fluo-4, pentaammonium salt is an analog of fluo-3 with the two chlorine substituents replaced by fluorines, which results in increased fluorescence excitation at 488 nm and consequently higher fluorescence signal levels.

1-Palmitoyl-2-[3-(diphenylhexatriene)propanoyl]-sn-phosphatidylcholine 是一种荧光探针，其极性磷脂酰乙醇胺头基适用于测定脂蛋白与血浆表面脂质的氧化。

DIB-Cl（4-(4,5-Diphenyl-1H-imidazol-2-yl)benzoyl chloride）作为一种荧光标记试剂，主要用于对胺类的标记。该化合物已被广泛应用于高效液相色谱中对兴奋类胺的检测。

7-Hydroxy-4-methylcoumarin-3-acetic acid is a blue fluorophore that has pH-dependent and environment-sensitive fluorescence. This coumarin is increasingly used to label peptides, nucleotides and carbohydrates.

2,5-Dioxopyrrolidin-1-yl 2-(7-hydroxy-4-methyl-2-oxo-2H-chromen-3-yl)acetate 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T67683，CAS号为 96735-88-5。

N-(7-Nitrobenzofurazan-4-yl)phalacidin 是一种用于肌动蛋白可视化探针的荧光染料。

Fluo-3 (ammonium salt) is a fluorescent calcium indicator commonly used in flow cytometry and cell-based experiments to detect changes in intracellular calcium levels. [1] Its absorption maximum at 506 nm makes it compatible with excitation at 488 nm by argon-ion laser sources. Fluo-3 provides intense fluorescence upon binding calcium, detected at a maximum emission at 526 nm which can be monitored by FL1 (green, 525 nm band pass) sensors in flow cytometry.

Fura-2 is a ratiometric fluorescent calcium indicator that can be used to detect calcium in cells. It is a pentacarboxylate that displays excitation maxima of 340 and 380 nm at high and low calcium concentrations, respectively, when the emission is fixed at 510 nm, enabling determination of ratiometric measurements of calcium influx in live cells.

7-(Diethylamino)-4-methyl-2H-chromen-2-one 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T66262，CAS号为 91-44-1。

AMCA-X, N-succinimidyl ester is an amine-reactive, UV-excitable, blue fluroscent dye.

7-Hydroxycoumarin-3-carboxylic acid is a blue fluorophores for labeling proteins and nucleic acids mostly through the in situ formation of its succinimidyl ester catalyzed by EDAC.

7-Acetoxy-4-bromomethylcoumarin是作为脂肪酸新型荧光探针。

Compound 1a (1-(3',6'-Bis(ethylamino)-2',7'-dimethyl-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)-3-phenylurea) 是一种高效的荧光探针，专用于监测水和合成产品中金离子的快速响应。

DACB-CN是一种多功能染料，在生物实验中扮演着关键角色。它能有效协助研究人员观察细胞结构、追踪生物分子、评估细胞功能、区分不同细胞类型、检测生物分子、研究组织病理以及监测微生物活动，广泛应用于从基础科学研究到临床诊断等领域。此外，DACB-CN在纺织品染色、功能性纺织品处理、食品着色以及染料敏化太阳能电池等传统与新兴领域中也展现出其广泛的用途。

Indo-1 (sodium salt) is a ratiometric fluorescent calcium indicator. It is ideal for analyses using flow cytometry, as it uses a single excitation source, typically 349-364 nm light from an argon-ion laser. The emission maximum shifts from 475-485 nm without calcium to 400-410 nm when Indo-1 (sodium salt) binds calcium. Indo-1 (sodium salt) is prone to photobleaching, which limits its usefulness in methods involving microscopy.

N-(4-(Bis(4-(diethylamino)phenyl)methylene)cyclohexa-2,5-dien-1-ylidene)-N-ethylethanaminium chloride 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T65162，CAS号为 2390-59-2。

Calcium measurement is critical for numerous biological investigations. Fluorescent probes that show spectral responses upon binding calcium have enabled researchers to investigate changes in intracellular free calcium concentrations by using fluorescence microscopy, flow cytometry, fluorescence spectroscopy and fluorescence microplate readers. Fluo-3 and Fluo-4 are most commonly used among the visible light-excitable calcium indicators. Fluo-4, pentasodium salt is an analog of fluo-3 with the two chlorine substituents replaced by fluorines, which results in increased fluorescence excitation at 488 nm and consequently higher fluorescence signal levels.

2-([1,1-Biphenyl]-4-yl)-5-phenyl-1,3,4-oxadiazole 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T66233，CAS号为 852-38-0。

Sodium 4-(3-(4-hydroxy-5-isopropyl-2-methylphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)-2-isopropyl-5-methylphenolate 是一种有用的有机化合物，可用于生命科学领域的相关研究。其产品编号为 T66669，CAS号为 62625-21-2。

7-Methoxycoumarin-3-carboxylic acid may be used as a reference compound in the purification, separation and analysis of coumarin compounds.

7-Amino-4-methylcoumarin hydrogensulfate（Coumarin 120 hydrogensulfate；AMC hydrogensulfate）是一种多功能染料。染料在生物实验中是重要的工具，用于观察细胞结构、追踪生物分子、评估细胞功能、区分细胞类型、检测生物分子、研究组织病理和监测微生物，从基础科学研究到临床诊断领域均有广泛应用。此外，它在传统纺织品染色、新兴功能性纺织品处理、食品色素以及染料敏化太阳能电池等方面也有广泛应用。