Ciproxifan (FUB-359)

Alias: FUB 359; FUB-359; FUB359; Ciproxifan
Cat No.:V1230 Purity: ≥98%
Ciproxifan (FUB 359; FUB-359; FUB359) is a highly potent and selective histamine H3-receptor antagonist used for treatment of cognitive deficiencies and other disorders of the central nervous system.
Ciproxifan (FUB-359) Chemical Structure CAS No.: 184025-18-1
Product category: Histamine Receptor
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of Ciproxifan (FUB-359):

  • Ciproxifan maleate (FUB-359)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Ciproxifan (FUB 359; FUB-359; FUB359) is a highly potent and selective histamine H3-receptor antagonist used for treatment of cognitive deficiencies and other disorders of the central nervous system. It exhibits low affinity for other receptor subtypes and inhibits the histamine H3-receptor with an IC50 of 9.2 nM. Furthermore, it has been documented that Ciproxifan competitively opposes the (R) α-MeHA-induced relaxation of electrically stimulated ileum longitudinal muscle in guinea pigs. Furthermore, it has been discovered that Ciproxifan affects [125I]iodoproxyfan binding, with a Ki value of 0.7±0.2 nM.

Biological Activity I Assay Protocols (From Reference)
Targets
H3 Receptor ( IC50 = 9.2 nM )
ln Vitro

In vitro activity: Ciproxifan inhibits the release of [3H]HA from rat cerebral cortex synaptosomes, with a Ki of 0.5 nM[1]. Ciproxifan (0.01 nM-1 μM; 60 min) inhibits the binding of [125I]iodoproxyfan with rat striatal membrane, with a Ki of 0.7 nM[1].

ln Vivo
Ciproxifan (1 mg/kg; a single p.o.) raises the t-MeHA level in mouse brains, with an ED50 of 0.14 mg/kg[1]. In rats, ciprofloxan (3 mg/kg, i.p.) increases response accuracy in the five-choice task only when the stimulus lasts for 0.25 seconds as opposed to 0.50 seconds[1].
Ciproxifan (0.15-2 mg/kg; p.o.) causes pronounced neocortical EEG activation, characterized by increased fast-rhythm density and nearly full waKing in cats[1].
Ciproxifan (1 mg/kg; a single i.v.) demonstrates maximal concentration (Cmax=420 nM) and oral bioavailability (F=62%) in mice[1].
Ciproxifan (1 mg/kg; a single p.o.) demonstrates maximal concentration (Cmax=420 nM) and oral bioavailability (F=62%) in mice[1].
Animal Protocol
Dissolved in 1% methylcellulose for the oral route, in 0.9% NaCl for i.v. routes; 1 mg/kg; p.o. or i.v. administration
Male Swiss mice
References

[1]. Neurochemical and behavioral effects of ciproxifan, a potent histamine H3-receptor antagonist. J Pharmacol Exp Ther. 1998 Nov;287(2):658-66.

[2]. Ciproxifan, a histamine H?-receptor antagonist?/?inverse agonist, modulates methamphetamine-induced sensitization in mice. Eur J Neurosci. 2011 Apr;33(7):1197-204. doi: 10.1111/j.1460-9568.2011.07618.x.

[3]. Ciproxifan, an H3 receptor antagonist, alleviates hyperactivity and cognitive deficits in the APP Tg2576 mouse model of Alzheimer's disease. Neurobiol Learn Mem. 2011 Jan;95(1):64-72.

[4]. The H3 antagonist, ciproxifan, alleviates the memory impairment but enhances the motor effects of MK-801 (dizocilpine) in rats. Neuropharmacology. 2010 Nov;59(6):492-502.

[5]. Differential effects of ciproxifan and nicotine on impulsivity and attention measures in the 5-choice serial reaction time test. Biochem Pharmacol. 2007 Apr 15;73(8):1123-34.

[6]. Ciproxifan, a histamine H3-receptor antagonist/inverse agonist, modulates the effects of methamphetamine on neuropeptide mRNA expression in rat striatum. Eur J Neurosci. 2003 Jan;17(2):307-14.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C16H18N2O2
Molecular Weight
270.33
Exact Mass
270.14
Elemental Analysis
C, 71.09; H, 6.71; N, 10.36; O, 11.84
CAS #
184025-18-1
Related CAS #
Ciproxifan maleate; 184025-19-2
Appearance
Solid powder
SMILES
C1CC1C(=O)C2=CC=C(C=C2)OCCCC3=CN=CN3
InChi Key
ACQBHJXEAYTHCY-UHFFFAOYSA-N
InChi Code
InChI=1S/C16H18N2O2/c19-16(12-3-4-12)13-5-7-15(8-6-13)20-9-1-2-14-10-17-11-18-14/h5-8,10-12H,1-4,9H2,(H,17,18)
Chemical Name
cyclopropyl-[4-[3-(1H-imidazol-5-yl)propoxy]phenyl]methanone
Synonyms
FUB 359; FUB-359; FUB359; Ciproxifan
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)
DMSO: ~54 mg/mL (~139.8 mM)
Water: <1 mg/mL
Ethanol: ~54 mg/mL (~139.8 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 3.6992 mL 18.4959 mL 36.9918 mL
5 mM 0.7398 mL 3.6992 mL 7.3984 mL
10 mM 0.3699 mL 1.8496 mL 3.6992 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:

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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?
  • 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)
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  • 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.
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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.)
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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.

Biological Data
  • CiproxifanEffect of ciproxifan on the inhibition by imetit of the K+-induced [3H]HA release from synaptosomes of rat cerebral cortex.J Pharmacol Exp Ther.1998 Nov;287(2):658-66.
  • Ciproxifan
    Effects of H3-receptor antagonists on the inhibition by HA of the K+-induced [3H]HA release from rat cerebral cortex synaptosomes.J Pharmacol Exp Ther.1998 Nov;287(2):658-66.
  • Ciproxifan
    Inhibition of [125I]iodoproxyfan binding to rat striatal membranes by various histaminergic agents.J Pharmacol Exp Ther.1998 Nov;287(2):658-66.
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