| Size | Price | Stock | Qty |
|---|---|---|---|
| 100mg |
|
||
| 500mg |
|
||
| 1g |
|
||
| 5g |
|
||
| Other Sizes |
| Targets |
The compound itself does not have a biological protein target. Its purpose is as a chemical building block. The sulfonic acid group acts as a reactive handle that can be converted to a sulfonyl chloride or other activated ester, allowing covalent conjugation to nucleophilic groups on target molecules. The final cyanine dyes synthesized from it target specific proteins or DNA in biological assays via the attached ligands. It is a versatile intermediate for bio-conjugation.
|
|---|---|
| ln Vitro |
In vitro, the compound exhibits no intrinsic bioactivity. Its utility is demonstrated in the synthesis of fluorescent tracers. When coupled to a targeting ligand (e.g., an antibody), the resulting conjugate retains the binding specificity of the ligand. The parent indolenine salt does not inhibit enzymes or activate receptors. The excitation and emission maxima of dyes derived from this intermediate typically fall within the far-red to near-infrared spectrum (650-900 nm), ideal for deep-tissue imaging.
|
| ln Vivo |
The compound is not an active pharmaceutical ingredient and has no direct in vivo activity. It is a research chemical used to manufacture dyes for in vivo imaging. The biological activity observed in vivo results from the final functionalized dye, which may accumulate in tumors or specific organs depending on its targeting moiety. The sulfonated indolenine salt itself is chemically reactive but is not administered to animals.
|
| Enzyme Assay |
Cell‑free experiments are centered on the chemical synthesis of dyes. A standard protocol involves the alkylation of this indolenine salt with an activated halide (e.g., iodoalkane) to extend the conjugation chain, creating a cyanine dye. The reaction progress is monitored by Thin Layer Chromatography (TLC) and High-Performance Liquid Chromatography (HPLC). The purified product is characterized by UV-Vis spectroscopy to confirm absorbance and fluorescence profiles.
|
| Cell Assay |
The compound is not used directly in live-cell or fixed-cell assays. Instead, the final synthesized fluorescent dyes are used for labeling. For example, a cell membrane-permeable NIR dye can be incubated with live cells (1-10 uM for 15-30 minutes). After washing, the cells are visualized under a fluorescent microscope equipped with far-red/ NIR filters. The labeling efficiency is compared to standard dyes like DAPI or Hoechst.
|
| Animal Protocol |
This chemical is not administered in animal studies. However, the NIR dyes derived from it are frequently used in vivo. In a mouse xenograft model, a targeted NIR dye (e.g., folate-conjugate) is injected intravenously at 5-10 nmol per mouse. At 4-24 hours post-injection, the mice are imaged using an in vivo imaging system (IVIS) with excitation in the NIR range to visualize tumor-specific accumulation. This protocol is used to validate the binding of the synthesized probe.
|
| ADME/Pharmacokinetics |
PK data is not available for the synthetic intermediate itself. The water-soluble nature of the sulfonated indolenine significantly reduces its lipophilicity (log P ~ -1) and prevents passive diffusion across cell membranes. This characteristic is intentionally incorporated to allow conjugation to water-soluble molecules. It is stored at 2-8degC protected from light. Its oral bioavailability is presumed to be low.
|
| Toxicity/Toxicokinetics |
There is no specific toxicological data for this synthetic building block. Based on its chemical structure (aromatic sulfonate), it is expected to have low acute toxicity but may cause irritation to skin, eyes, and the respiratory tract. It should be handled with standard laboratory chemical safety practices: use of personal protective equipment (gloves, lab coat, safety glasses) and adequate ventilation.
|
| References | |
| Additional Infomation |
This product is a high-purity research-grade chemical, not an approved drug. It has no clinical trial status. It is widely used as a fundamental building block in the synthesis of organic dyes, particularly for fluorescence imaging, flow cytometry, and DNA sequencing. The molecular formula is C11H12KNO3S, with a molecular weight of 277.38 g/mol. It is stored at room temperature or 2-8degC, protected from light.
|
| Molecular Formula |
C11H12KNO3S
|
|---|---|
| Molecular Weight |
278.39
|
| Exact Mass |
277.017
|
| CAS # |
184351-56-2
|
| PubChem CID |
23681862
|
| Appearance |
Solid powder
|
| Melting Point |
262-264°C
|
| LogP |
2.49
|
| Hydrogen Bond Donor Count |
0
|
| Hydrogen Bond Acceptor Count |
4
|
| Rotatable Bond Count |
1
|
| Heavy Atom Count |
17
|
| Complexity |
425
|
| Defined Atom Stereocenter Count |
0
|
| SMILES |
[K+].S(C1C([H])=C([H])C2=C(C=1[H])C(C([H])([H])[H])(C([H])([H])[H])C(C([H])([H])[H])=N2)(=O)(=O)[O-]
|
| InChi Key |
ZWIOSPCYIJAHKM-UHFFFAOYSA-M
|
| InChi Code |
InChI=1S/C11H13NO3S.K/c1-7-11(2,3)9-6-8(16(13,14)15)4-5-10(9)12-7;/h4-6H,1-3H3,(H,13,14,15);/q;+1/p-1
|
| Chemical Name |
potassium;2,3,3-trimethylindole-5-sulfonate
|
| HS Tariff Code |
2934.99.9001
|
| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture. |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
|
| Solubility (In Vitro) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
|
|---|---|
| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.5921 mL | 17.9604 mL | 35.9208 mL | |
| 5 mM | 0.7184 mL | 3.5921 mL | 7.1842 mL | |
| 10 mM | 0.3592 mL | 1.7960 mL | 3.5921 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
Products are for research use only; We do not sell to patients
Copyright 2020 InvivoChem LLC | All Rights Reserved
