yingweiwo

UCL-1684 Br

Cat No.:V12532 Purity: ≥98%
UCL 1684 (dibromide) is a small conductance calcium-activated potassium (SK) channel blocker.
UCL-1684 Br
UCL-1684 Br Chemical Structure CAS No.: 199934-16-2
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
Other Sizes
Official Supplier of:
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text

 

  • Business Relationship with 5000+ Clients Globally
  • Major Universities, Research Institutions, Biotech & Pharma
  • Citations by Top Journals: Nature, Cell, Science, etc.
Top Publications Citing lnvivochem Products
Product Description
UCL 1684 (dibromide) is a small conductance calcium-activated potassium (SK) channel blocker. UCL 1684 (dibromide) is effective in preventing the development of atrial fibrillation due to potent atrial-selective inhibition of INa. UCL 1684 (dibromide) causes atrial-selective ERP prolongation secondary to induction of postpolarization resistance.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
UCL 1684 (dibromide) (0.5 μM; HEK cells) modifies SS inactivation of cardiac sodium channels and causes direct atrial-selective inhibition of sodium channel current (INa). UCL 1684 (dibromide) at 0.5 μM lengthens the shortest S1-S1 gap, causes PRR, lowers V max, and increases DTE [1].
ln Vivo
The duration of the Wenckbach cycle is extended to 115.0±5.1% of baseline with UCL 1684 (dibromide) (3 mg/kg; iv) [3].
References

[1]. The Small Conductance Calcium-Activated Potassium Channel Inhibitors NS8593 and UCL1684 Prevent the Development of Atrial Fibrillation Through Atrial-Selective Inhibition of Sodium Channel Activity. J Cardiovasc Pharmacol. 2020;76(2).

[2]. Bis-quinolinium cyclophanes: 6,10-diaza-3(1,3),8(1,4)-dibenzena-1,5(1,4)- diquinolinacyclodecaphane (UCL 1684), the first nanomolar, non-peptidic blocker of the apamin-sensitive Ca(2+)-activated K+ channel. J Med Chem. 1998;41(1):2-5.

[3]. Effects on atrial fibrillation in aged hypertensive rats by Ca(2+)-activated K(+) channel inhibition. Hypertension. 2011;57(6):1129-1135.

Additional Infomation
See also: Ucl 1684 (annotation moved to).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C34H30N4+2.2[BR-]
Molecular Weight
654.4368
Exact Mass
720.217
CAS #
199934-16-2
PubChem CID
9852584
Appearance
White to off-white solid powder
LogP
5.075
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
0
Heavy Atom Count
40
Complexity
689
Defined Atom Stereocenter Count
0
InChi Key
KPNMQIKQVCWNTP-UHFFFAOYSA-N
InChi Code
InChI=1S/C34H28N4.2BrH/c1-3-10-33-29(8-1)31-16-18-37(33)23-27-6-5-7-28(20-27)24-38-19-17-32(30-9-2-4-11-34(30)38)36-22-26-14-12-25(13-15-26)21-35-31;;/h1-20H,21-24H2;2*1H
Chemical Name
17,24-diaza-1,9-diazoniaheptacyclo[23.6.2.29,16.219,22.13,7.010,15.026,31]octatriaconta-1(32),3(38),4,6,9(37),10,12,14,16(36),19,21,25(33),26,28,30,34-hexadecaene;dibromide
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

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)
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
(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).
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)]
*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).
View More

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 1.5280 mL 7.6401 mL 15.2802 mL
5 mM 0.3056 mL 1.5280 mL 3.0560 mL
10 mM 0.1528 mL 0.7640 mL 1.5280 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.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
/

Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
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.)
+
+
+

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.

Biological Data
  • Atrial selective electrophysiological effects of UCL1684 in the induction of PRR (A-D), reduction of Vmax (E-F), increase in DTE (G), and prolongation of the shortest S1-S1 interval permitting 1:1 activation (H). Composite data of Vmax of atrial and ventricular APs following acceleration from a CL of 500 to 300 ms expressed as % of Vmax value recorded at a CL of 500 ms in Controls (F).* p <0.05 vs. control. # - p<0.05 vs. respective ventricular value. N=7–10. Data presented in C, D, E, and G were obtained at a pacing CL = 500 ms.The Small Conductance Calcium-Activated Potassium Channel Inhibitors NS8593 and UCL1684 Prevent the Development of Atrial Fibrillation Through Atrial-Selective Inhibition of Sodium Channel Activity. J Cardiovasc Pharmacol. 2020;76(2).
  • UCL1684 and NS8593 produce direct atrial-selective inhibition of sodium channel current (INa) and shift steady-state inactivation of the cardiac sodium channels.A: Representative INa recordings from a NaV1.5-WT plus NavB1-WT expressed in HEK cells in presence of UCL1684. B: Effect of NS8593 (10 μM) effect on sodium channel current density at test potential of −20 mV in canine atrial and ventricular myocytes recorded at holding potentials (HP) of −120 mV and −90 mV. C. Effect of NS8593 (10 μM) on steady-state inactivation of the sodium channels in atrial and ventricular cardiac myocytes.The Small Conductance Calcium-Activated Potassium Channel Inhibitors NS8593 and UCL1684 Prevent the Development of Atrial Fibrillation Through Atrial-Selective Inhibition of Sodium Channel Activity. J Cardiovasc Pharmacol. 2020;76(2).
Contact Us