Rhodamine 110 (Rhodamine 110 chloride)
(Synonyms: 罗丹明110; Rhodamine 110 chloride; RH110) 目录号 : GC30300
A cationic dye
Cas No.:13558-31-1
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Animal experiment: | Rats[1] Adult male Sprague-Dawley rats (230±20 g) are used. After the rats recovered, Rhodamine 110 in polyethylene glycol 400 (0.3 and 1 mg/mL) is administered at 3 mg/kg and 10 mg/kg by oral gavage. Blood samples (150 μL) are collected from the right jugular vein 5, 15, 30, 60, 120, 180, 240, 300, 360, 480, and 720 min after drug administration. After each sampling, 100 μL of normal saline is administered via catheter to compensate for the loss of body fluid, and a 50 μL heparin solution (20 IU heparin/mL normal saline) is provided to prevent coagulation. Blood samples are centrifuged at 16,000g for 10 min at 4 °C to obtain plasma, which is stored at -20 °C until analysis. After surgery, Rhodamine 110 in polyethylene glycol 400 (1 mg/mL) is administered intravenously to rats at 3 mg/kg (n=6). A 150 μL blood sample is collected from the right jugular vein 5, 15, 30, 60, 120, 180, 240, 300, 360, 480, and 720 min after drug administration. Then, 100 μL of normal saline is administered via the right jugular vein to compensate for body fluid loss, and 50 μL of a heparin solution (20 IU heparin/mL normal saline) is provided to prevent blood clotting. |
References: [1]. Jiang SH, et al. Pharmacokinetics of Rhodamine 110 and Its Organ Distribution in Rats. J Agric Food Chem. 2017 Sep 6;65(35):7797-7804. | |
Rhodamine 110 is a green fluorescent cationic dye with excitation and emission maxima of 496 and 520 nm, respectively.1 When incorporated with a hydrolytic substrate (e.g., proteinase or peptidase substrates), it can be used as a highly sensitive detection reagent in fluorescence-based enzyme assays.2 Rhodamine 110 has also been used in a fluorescence quenching method for determining trace nitrite and as a probe for cytochrome P450 activity.3,4
1.Thatte, H.S., Rhee, J.-H., Zagarins, S.E., et al.Acidosis-induced apoptosis in human and porcine heartAnn. Thorac. Surg.77(4)1376-1383(2004) 2.Hug, H., Los, M., Hirt, W., et al.Rhodamine 110-linked amino acids and peptides as substrates to measure caspase activity upon apoptosis induction in intact cellsBiochemistry38(42)13906-13911(1999) 3.Zhang, X., Wang, H., Fu, N.N., et al.A fluorescence quenching method for the determination of nitrite with Rhodamine 110Spectrochimica Acta.A.Mol.Biomol.Spectrosc.59(8)1667-1772(2003) 4.Yatzeck, M.M., Lavis, L.D., Chao, T.Y., et al.A highly sensitive fluorogenic probe for cytochrome P450 activity in live cellsBioorg. Med. Chem. Lett.18(22)5864-5866(2008)
| Cas No. | 13558-31-1 | SDF | |
| 别名 | 罗丹明110; Rhodamine 110 chloride; RH110 | ||
| Canonical SMILES | O=C(C1=CC=CC=C1C2=C3C=CC(N)=CC3=[O+]C4=C2C=CC(N)=C4)O.[Cl-] | ||
| 分子式 | C20H15ClN2O3 | 分子量 | 366.8 |
| 溶解度 | DMSO : 30 mg/mL (81.79 mM) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.7263 mL | 13.6314 mL | 27.2628 mL |
| 5 mM | 0.5453 mL | 2.7263 mL | 5.4526 mL |
| 10 mM | 0.2726 mL | 1.3631 mL | 2.7263 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
New Core-Shell Nanostructures for FRET Studies: Synthesis, Characterization, and Quantitative Analysis
This work describes the synthesis and characterization of new core-shell material designed for F?rster resonance energy transfer (FRET) studies. Synthesis, structural and optical properties of core-shell nanostructures with a large number of two kinds of fluorophores bound to the shell are presented. As fluorophores, strongly fluorescent rhodamine 101 and rhodamine 110 chloride were selected. The dyes exhibit significant spectral overlap between acceptor absorption and donor emission spectra, which enables effective FRET. Core-shell nanoparticles strongly differing in the ratio of donors to acceptor numbers were prepared. This leads to two different interesting cases: typical single-step FRET or multistep energy migration preceding FRET. The single-step FRET model that was designed and presented by some of us recently for core-shell nanoparticles is herein experimentally verified. Very good agreement between the analytical expression for donor fluorescence intensity decay and experimental data was obtained, which confirmed the correctness of the model. Multistep energy migration between donors preceding the final transfer to the acceptor can also be successfully described. In this case, however, experimental data are compared with the results of Monte Carlo simulations, as there is no respective analytical expression. Excellent agreement in this more general case evidences the usefulness of this numerical method in the design and prediction of the properties of the synthesized core-shell nanoparticles labelled with multiple and chemically different fluorophores.
Rotational diffusion of ionic and neutral solutes in mixed micelles: effect of surfactant to block copolymer mole ratio on solute rotation
Rotational diffusion of an ionic solute rhodamine 110 and a neutral solute 2,5-dimethyl-1,4-dioxo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DMDPP) has been investigated in aqueous mixtures of cetyltrimethylammonium chloride (CTAC) and poly(ethylene oxide)20-poly(propylene oxide)70-poly(ethylene oxide)20 (P123). The purpose of this work is to understand how an increase in the mole ratio of surfactant to block copolymer from low to high influences the dynamics of ionic and neutral solute molecules. The variation in the mole ratio of CTAC to P123 from low to high has resulted in a drastic increase in the average reorientation time of rhodamine 110. In contrast, an exactly opposite trend has been noticed in the case of DMDPP. In the low mole ratio regime, rhodamine 110 and DMDPP are located at the interface and palisade layer, respectively, of P123 micelle-CTAC complexes. On the other hand, in the high mole ratio regime, both the probes are located in the Stern layer of CTAC-P123 complexes. The enhancement in the average reorientation time of rhodamine 110 with an increase in the mole ratio of surfactant to block copolymer has been rationalized on the basis of formation of rhodamine 110-Cl ion pair, which in turn associates with the cationic head groups of CTAC-P123 complexes. The observed decrease in the average reorientation time of DMDPP with an increase in the mole ratio of CTAC to P123 is a consequence of lower microviscosity of the Stern layer of CTAC-P123 complexes compared to the palisade layer of P123 micelle-CTAC complexes.
N-Ac-DEVD-N'-(Polyfluorobenzoyl)-R110: novel cell-permeable fluorogenic caspase substrates for the detection of caspase activity and apoptosis
N-Pentafluorobenzoyl-R110 (1a) and N-(2,3,4,5-tetrafluorobenzoyl)-R110 (1b) with enhanced cell retention properties, were prepared from rhodamine 110 (R-110) and the corresponding polyfluorobenzoyl chloride. N-Ac-DEVD-N'-pentafluorobenzoyl-R110 (3a) and N-Ac-DEVD-N'-(2,3,4,5-tetrafluorobenzoyl)-R110 (3b) were prepared as tetrapeptide substrates for caspases. Substrate 3b was efficiently cleaved by human recombinant caspase-3 in an enzyme assay. Substrate 3b also was efficiently cleaved in cell-based apoptosis assays. After cleavage in apoptotic cells by activated caspases, the substrate becomes fluorescent as measured by flow cytometry. These substrates should prove useful in cell-based assays for studying apoptosis inducers and inhibitors.
Determination of equilibrium and rate constants for complex formation by fluorescence correlation spectroscopy supplemented by dynamic light scattering and Taylor dispersion analysis
The equilibrium and rate constants of molecular complex formation are of great interest both in the field of chemistry and biology. Here, we use fluorescence correlation spectroscopy (FCS), supplemented by dynamic light scattering (DLS) and Taylor dispersion analysis (TDA), to study the complex formation in model systems of dye-micelle interactions. In our case, dyes rhodamine 110 and ATTO-488 interact with three differently charged surfactant micelles: octaethylene glycol monododecyl ether C12E8 (neutral), cetyltrimethylammonium chloride CTAC (positive) and sodium dodecyl sulfate SDS (negative). To determine the rate constants for the dye-micelle complex formation we fit the experimental data obtained by FCS with a new form of the autocorrelation function, derived in the accompanying paper. Our results show that the association rate constants for the model systems are roughly two orders of magnitude smaller than those in the case of the diffusion-controlled limit. Because the complex stability is determined by the dissociation rate constant, a two-step reaction mechanism, including the diffusion-controlled and reaction-controlled rates, is used to explain the dye-micelle interaction. In the limit of fast reaction, we apply FCS to determine the equilibrium constant from the effective diffusion coefficient of the fluorescent components. Depending on the value of the equilibrium constant, we distinguish three types of interaction in the studied systems: weak, intermediate and strong. The values of the equilibrium constant obtained from the FCS and TDA experiments are very close to each other, which supports the theoretical model used to interpret the FCS data.