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ER-Tracker Green

Cat No.:V67102 Purity: ≥98%
ER-Tracker dye is an analogue of the BODIPY series dye coupled with Glibenclamide.
ER-Tracker Green
ER-Tracker Green Chemical Structure CAS No.: 730931-46-1
Product category: Fluorescent Dye
This product is for research use only, not for human use. We do not sell to patients.
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1mg
5mg
10mg
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description
ER-Tracker dye is an analogue of the BODIPY series dye coupled with Glibenclamide. It binds to the endoplasmic reticulum with high selectivity and is non-toxic to cells at low concentrations. This type of dye is an environmentally sensitive probe. After treatment with formaldehyde It can still retain part of the fluorescence and has the characteristics of high fluorescence lifetime and good extinction coefficient. Glibenclamide is an ATP-dependent K+ channel blocker (Kir6, KATP) and CFTR Cl- channel blocker that binds in the endoplasmic reticulum. ER-Tracker is not suitable for staining fixed cells.
ER-Tracker Green (ERTG) (CAS#: 730931-46-1) is a cell-permeable fluorescent dye that specifically stains the endoplasmic reticulum (ER) in live cells. It has the molecular formula C₃₇H₄₂BClF₂N₆O₆S and a molecular weight of 783.09 g/mol. The dye is a BODIPY-based fluorescent probe conjugated with glibenclamide, exhibiting high selectivity for the endoplasmic reticulum. It has an excitation wavelength of 504 nm and an emission wavelength of 511 nm. ER-Tracker Green is a cell-permeable live cell stain for live cell imaging. After formaldehyde treatment, some fluorescence can still be retained. The dye is an environmentally sensitive probe.
Biological Activity I Assay Protocols (From Reference)
Targets
ER-Tracker Green targets the endoplasmic reticulum (ER) through its glibenclamide moiety. Glibenclamide is a sulfonylurea that binds to sulfonylurea receptors, which are associated with ATP-sensitive potassium channels. However, in the context of ER-Tracker Green, the glibenclamide moiety provides specificity for the ER. The BODIPY fluorophore provides green fluorescence (Ex/Em=504/511 nm). The compound is cell-permeable and has low cytotoxicity at low concentrations.
ln Vitro
1. The ER-Tracker working solution is prepared as follows: 1.1 Stock solution preparation: dissolve 100 μg of ER-Tracker in 128 μL DMSO to create a 1 mM stock solution. Note: It is advised to keep the stock solution frozen and to avoid repeatedly thawing and freezing it at -20°C or -80°C in the dark. 1.2 Making the working solution for ER-Tracker Dilute the stock solution to a concentration of 100 nM-1 μM using either PBS or serum-free cell culture medium. It is important that you modify the ER-Tracker working fluid concentration based on the current circumstances. 2. Suspension cells in a 6-well plate (2.1) are stained A. After three to five minutes at 4°C and 1000 g of centrifugation, discard the supernatant. Wash for five minutes each time, twice, using PBS. One x 10^6 cells per milliliter. B. After adding 1 mL of the working solution, let it sit at room temperature for five to thirty minutes. an. Discard the supernatant after centrifuging for three to four minutes at 400 g and 4°C. D. Wash for five minutes each time, twice, using PBS. E. In PBS or serum-free cell culture media, resuspend the cells. either flow cytometry monitoring or fluorescence microscopy. Cells that adhere 2.2 a. Adherent cells are cultured on sterile coverslips. B. Lift the coverslip out of the culture media and use the aspirator to remove any extra. an. To fully cover the cells, add 100 μL of working solution, shake gently, and then incubate for five to thirty minutes at room temperature. D. Use medium for five minutes each time you wash. either flow cytometry monitoring or fluorescence microscopy. Note: Cells must be resuspended prior to staining if flow cytometry is being used for detection.
The in vitro activity of ER-Tracker Green is its function as a selective ER stain for live cell imaging. The dye is a BODIPY-based fluorescent probe conjugated with glibenclamide, providing high selectivity for the endoplasmic reticulum. It has excitation/emission maxima of 504/511 nm. The dye is cell-permeable and has low cytotoxicity at low concentrations. It is an environmentally sensitive probe and can retain some fluorescence after formaldehyde treatment.
ln Vivo
ER-Tracker Green is not used as a therapeutic agent. Its in vivo utility is limited to research applications involving the labeling of the endoplasmic reticulum in live cells. The compound is not intended for systemic therapeutic use.
Enzyme Assay
In vitro ER staining assays for ER-Tracker Green involve incubating live cells with the dye in cell culture medium at low concentrations. The cell-permeable dye enters cells and selectively stains the endoplasmic reticulum. After incubation, cells are washed and analyzed by fluorescence microscopy with excitation at 504 nm and emission at 511 nm. The dye is suitable for live cell imaging and can be used for time-lapse studies of ER dynamics. The dye can also be used after fixation, as some fluorescence is retained after formaldehyde treatment.
Cell Assay
For in vitro cellular experiments, ER-Tracker Green is dissolved in DMSO and diluted in cell culture medium. Cells are incubated with the dye for a defined period, washed, and then analyzed by fluorescence microscopy. The green fluorescence (Ex/Em=504/511 nm) provides visualization of the endoplasmic reticulum structure and dynamics in live cells.
Animal Protocol
In vivo animal experiments with ER-Tracker Green are not typically performed, as the compound is primarily used as a cell culture reagent.
ADME/Pharmacokinetics
Pharmacokinetic properties of ER-Tracker Green have not been characterized, as the compound is a research-use fluorescent dye rather than a drug candidate. The compound has a molecular weight of 783.09 g/mol and should be stored at -20°C.
Toxicity/Toxicokinetics
ER-Tracker Green is intended for research use only and not for human therapeutic or diagnostic applications. Standard laboratory safety precautions should be observed when handling this chemical reagent.
References

[1]. A functional equivalent of endoplasmic reticulum and Golgi in axons for secretion of locally synthesized proteins. Mol Cell Neurosci. 2009 Feb;40(2):128-42.

[2]. A functional equivalent of endoplasmic reticulum and Golgi in axons for secretion of locally synthesized proteins. Mol Cell Neurosci. 2009 Feb;40(2):128-42.

[3]. Fluorescent substrates for flow cytometric evaluation of efflux inhibition in ABCB1, ABCC1, and ABCG2 transporters. Anal Biochem. 2013 Jun 1;437(1):77-87.

Additional Infomation
ER-Tracker Green (CAS#: 730931-46-1) is a cell-permeable fluorescent dye that specifically stains the endoplasmic reticulum in live cells. It is a BODIPY-based probe conjugated with glibenclamide with excitation/emission at 504/511 nm. The compound has no clinical or therapeutic applications.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C37H42BCLF2N6O6S
Molecular Weight
783.09179353714
Exact Mass
782.263
CAS #
730931-46-1
PubChem CID
168008655
Appearance
Brown to reddish brown solid powder
Hydrogen Bond Donor Count
4
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
12
Heavy Atom Count
54
Complexity
1610
Defined Atom Stereocenter Count
0
SMILES
ClC1C=C(C(NCCC2C=CC(=CC=2)S(NC(NC2CCCCC2)=O)(=O)=O)=O)C(=C(C=1)NC(CCC1C=CC2=CC3=C(C)C=C(C)N3[B-]([N+]2=1)(F)F)=O)OC
InChi Key
DOQZRTREFZBLMY-UHFFFAOYSA-N
InChi Code
InChI=1S/C37H42BClF2N6O6S/c1-23-19-24(2)46-33(23)22-29-12-11-28(47(29)38(46,40)41)13-16-34(48)44-32-21-26(39)20-31(35(32)53-3)36(49)42-18-17-25-9-14-30(15-10-25)54(51,52)45-37(50)43-27-7-5-4-6-8-27/h9-12,14-15,19-22,27H,4-8,13,16-18H2,1-3H3,(H,42,49)(H,44,48)(H2,43,45,50)
Chemical Name
5-chloro-N-[2-[4-(cyclohexylcarbamoylsulfamoyl)phenyl]ethyl]-3-[3-(2,2-difluoro-10,12-dimethyl-1-aza-3-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-3,5,7,9,11-pentaen-4-yl)propanoylamino]-2-methoxybenzamide
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 and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 50 mg/mL (63.85 mM)
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
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*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 : PEG300Tween 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).
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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)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL 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).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.2770 mL 6.3850 mL 12.7699 mL
5 mM 0.2554 mL 1.2770 mL 2.5540 mL
10 mM 0.1277 mL 0.6385 mL 1.2770 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.

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • Enter 5 in the Volume box and choose the correct unit (mL)
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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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.

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