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Furamidine HCl

Cat No.:V12135 Purity: ≥98%
Furamidine 2HCl, the dihydrochloride salt ofFuramidine, is anabisbenzamidine analog and an antiparasite agent.
Furamidine HCl
Furamidine HCl Chemical Structure CAS No.: 55368-40-6
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
10mg
Other Sizes

Other Forms of Furamidine HCl:

  • Furamidine
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Furamidine 2HCl, the dihydrochloride salt of Furamidine, is an abisbenzamidine analog and an antiparasite agent. It actis as an inhibitor of protein arginine methyltransferase 1 (PRMT1). Furamidine is also a competitive tyrosyl-DNA phosphodiesterase 1 (TDP-1) inhibitor.
Furamidine HCl (CAS#: 55368-40-6) is a cell-permeable inhibitor of protein arginine methyltransferase 1 (PRMT1). It is selective for PRMT1 over PRMT5, PRMT6, and PRMT4/CARM1 with IC50 values of 9.4 µM (PRMT1), 166 µM (PRMT5), 283 µM (PRMT6), and >400 µM (PRMT4/CARM1). It is also known as DB75 dihydrochloride.
Biological Activity I Assay Protocols (From Reference)
Targets
Furamidine HCl targets protein arginine methyltransferase 1 (PRMT1). PRMT1 is a key enzyme that catalyzes the methylation of arginine residues on target proteins, playing important roles in gene expression, DNA repair, and cell signaling. It is selective for PRMT1 over PRMT5, PRMT6, and PRMT4/CARM1.
ln Vitro
Nitrofuranzidine dihydrochloride (Compound 1; 20 μM; 72 hours; white cell lines) suppresses the proliferation of most white cell lines [1], with the exception of JAK2V617F HEL cells. The expression level of methylated GFP-ALY protein in 293T cells was considerably lowered after 15 hours of treatment with nitrofuranzidine (20 μM) dihydrochloride [1]. It is also possible to inject furosidine hydrochloride in between the GC base pairs of double-stranded DNA. Therefore, TDP and other enzymes involved in DNA processing may be affected by nitrofuranzidine hydrochloride.
In vitro, Furamidine HCl inhibits PRMT1 with an IC50 of 9.4 µM. It is selective for PRMT1 over PRMT5 (IC50 = 166 µM), PRMT6 (IC50 = 283 µM), and PRMT4/CARM1 (IC50 > 400 µM). It is a cell-permeable compound. These activities make it a useful tool for studying PRMT1 function.
ln Vivo
Nitrofuranzidine (1 mg/kg; i.p.; three times weekly, every 4 weeks; for 34 weeks; female NZB/NZW mice) dihydrochloride and irinotecan, when combined, decreased proteinuria. Prolonged NZB/combination treatment does not change anti-dsDNA antibody levels in lupus-prone persons [3].
In vivo, Furamidine HCl is used as a research tool for studying PRMT1-mediated methylation and its role in various diseases. By inhibiting PRMT1, it modulates arginine methylation of target proteins. Detailed in vivo efficacy data including effects on methylation and disease models are available in preclinical literature. It is a tool compound for studying PRMT1 biology.
Enzyme Assay
In vitro enzyme assays for Furamidine HCl typically involve measuring the inhibition of PRMT1, PRMT5, PRMT6, and PRMT4/CARM1 activity. The enzyme is incubated with a substrate (e.g., histone H4) and S-adenosylmethionine (SAM) in the presence of varying concentrations of the compound. Methylation is measured by radiometric or antibody-based detection. IC50 values are calculated from dose-response curves.
Cell Assay
Cell Viability Assay [1]
Cell Types: Meg-01, K562, HL-60, NB4, MOLM13, HEL, CMK, CMY, CMS and CHRF Cell
Tested Concentrations: 20 μM
Incubation Duration: 72 hrs (hours)
Experimental Results: Inhibited cell growth of most leukemia cell lines, except HEL cells with JAK2V617F mutation.

Western Blot Analysis [1]
Cell Types: 293T cells
Tested Concentrations: 20 μM
Incubation Duration: 15 hrs (hours)
Experimental Results: The expression level of methylated GFP-ALY protein was Dramatically diminished.
Cell-based assays for Furamidine HCl involve culturing cells in appropriate media. Cells are treated with Furamidine HCl at concentrations ranging from 0.1 µM to 100 µM for 24-72 hours. Protein arginine methylation is assessed by Western blot using methylation-specific antibodies. Cell viability is assessed by MTT or CellTiter-Glo assays. Gene expression changes are measured by qPCR.
Animal Protocol
Animal/Disease Models: Female NZB/NZW mice (6 weeks old) treated with irinotecan (1 mg/kg)[3]
Doses: 1 mg/kg
Route of Administration: intraperitoneal (ip) injection; 3 times a week, repeated every 4 weeks ; Lasts 34 weeks
Experimental Results: Combination with irinotecan suppresses proteinuria and extends survival in lupus-prone NZB/NZW mice.
In vivo animal experiments for Furamidine HCl typically involve administration to rodent models via oral gavage or intraperitoneal injection. Protein arginine methylation in tissues is assessed by Western blot or immunohistochemistry. Pharmacokinetic parameters are evaluated by measuring compound levels in blood and tissues. Toxicity is assessed by monitoring body weight, organ histology, and clinical chemistry parameters.
ADME/Pharmacokinetics
Furamidine HCl (molecular weight 383.27, formula C17H16Cl2N4O) is a cell-permeable small molecule. It is soluble in DMSO. Detailed pharmacokinetic parameters including absorption, distribution, metabolism, and excretion are available in preclinical literature. Its cell permeability supports its use in cell-based studies.
Toxicity/Toxicokinetics
No detailed toxicology data are specifically available for Furamidine HCl from the search results. As a PRMT1 inhibitor, potential toxicity may include effects on gene expression and cell signaling. Comprehensive toxicological evaluation including acute, subchronic, and genotoxicity studies has likely been conducted in preclinical development. The compound is for research use only.
References
[1]. Yan L, et al. Diamidine compounds for selective inhibition of protein arginine methyltransferase 1. J Med Chem. 2014 Mar 27;57(6):2611-22.
[2]. Antony S, et al. Novel high-throughput electrochemiluminescent assay for identification of human tyrosyl-DNA phosphodiesterase (Tdp1) inhibitors and characterization of furamidine (NSC 305831) as an inhibitor of Tdp1. Nucleic Acids Res. 2007;35(13):4474-84.
[3]. Keil A, et al. The Topoisomerase I Inhibitor Irinotecan and the Tyrosyl-DNA Phosphodiesterase 1 Inhibitor Furamidine Synergistically Suppress Murine Lupus Nephritis. Arthritis Rheumatol. 2015 Jul;67(7):1858-67.
Additional Infomation
Furamidine HCl (CAS#: 55368-40-6) is a cell-permeable, selective PRMT1 inhibitor with an IC50 of 9.4 µM. It is selective over PRMT5, PRMT6, and PRMT4/CARM1. It is also known as DB75 dihydrochloride. Molecular weight: 383.27, formula: C17H16Cl2N4O.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H16N4O
Molecular Weight
304.34584
Exact Mass
340.109
CAS #
55368-40-6
Related CAS #
Furamidine;73819-26-8
PubChem CID
126437
Appearance
Light yellow to yellow solid powder
LogP
5.583
Hydrogen Bond Donor Count
4
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
4
Heavy Atom Count
23
Complexity
396
Defined Atom Stereocenter Count
0
SMILES
C1=CC(=CC=C1C2=CC=C(O2)C3=CC=C(C=C3)C(=N)N)C(=N)N.Cl.Cl
InChi Key
ZJHZBDRZEZEDGB-UHFFFAOYSA-N
InChi Code
InChI=1S/C18H16N4O/c19-17(20)13-5-1-11(2-6-13)15-9-10-16(23-15)12-3-7-14(8-4-12)18(21)22/h1-10H,(H3,19,20)(H3,21,22)
Chemical Name
4-[5-(4-carbamimidoylphenyl)furan-2-yl]benzenecarboximidamide
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, 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 Data
Solubility (In Vitro)
DMSO : ~12.5 mg/mL (~33.13 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 1.25 mg/mL (3.31 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 12.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 1.25 mg/mL (3.31 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 12.5 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.2857 mL 16.4285 mL 32.8569 mL
5 mM 0.6571 mL 3.2857 mL 6.5714 mL
10 mM 0.3286 mL 1.6428 mL 3.2857 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

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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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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

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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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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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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.

Biological Data
  • Inhibition of Tdp1 activity by furamidine. (A) Schematic representation of the Tdp1 biochemical assays. The partially duplex oligopeptide D14Y or single-stranded 14Y were used as substrates. 32P-Radiolabeling (*) was at the 5′ terminus of the 14-mer strand. Tdp1 catalyzes the hydrolysis of the 3′-phosphotyrosine bond and converts 14Y and D14Y to an oligonucleotide with 3′-phosphate, 14P or D14P, respectively. (B) Representative gel showing Tdp1 inhibition by furamidine with single strand (14Y) and partially duplex (D14Y) substrates. Reactions were performed at 25°C for 20 min. Arrows indicate the 3′-phosphate oligonucleotide product (14P) that runs quicker than the corresponding tyrosyl oligonucleotide substrate (14Y) in a denaturing PAGE (18). The duplex D14Y substrate and D14P product are detected on the gel by their corresponding labeled single strands (14Y and 14P), as they are no longer annealed under the denatured conditions. (C) Densitometry analysis of the gel shown in panel B. Tdp1 activity was calculated as the percentage of 14Y converted to 14P as a function of the concentration of furamidine. The horizontal line corresponds to 50% inhibition of Tdp1 activity.[2]. Antony S, et al. Novel high-throughput electrochemiluminescent assay for identification of human tyrosyl-DNA phosphodiesterase (Tdp1) inhibitors and characterization of furamidine (NSC 305831) as an inhibitor of Tdp1. Nucleic Acids Res. 2007;35(13):4474-84.
  • Inhibition of Tdp1 by furamidine is independent of the presence of thymidines at the 3′-end of the substrate. (A) Sequences of the oligonucletotide substrates 14Y and 14Y-CC, which differ in their 3′-terminal bases (–TT or –CC) linked to the phosphotyrosine. (B) Reactions (100 µl) containing either 25 nM 14Y or 14Y-CC and 5 ng of Tdp1 were incubated at 25°C. Aliquots were taken at the indicated times (min). Reaction products were analyzed by denaturing PAGE. (C) Densitometry analysis of the gel shown in B. Tdp1 activity measured as the percentage of DNA substrates 14Y-CC (left panel) or 14Y (right panel) converted to their corresponding products as a function of reaction time. (D) Reactions (20 µl) containing 25 nM 14Y or 14Y-CC and 1 ng Tdp1 were carried out in the presence of indicated concentrations (µM) of furamidine at 25°C, pH 8, for 20 min. A representative gel is shown. (E) Densitometry analysis of the gel shown in D. Tdp1 activity was calculated as the percentage of DNA substrates 14Y or 14Y-CC converted to their product. The horizontal line corresponds to 50% inhibition of Tdp1 activity.[2]. Antony S, et al. Novel high-throughput electrochemiluminescent assay for identification of human tyrosyl-DNA phosphodiesterase (Tdp1) inhibitors and characterization of furamidine (NSC 305831) as an inhibitor of Tdp1. Nucleic Acids Res. 2007;35(13):4474-84.
  • Binding of furamidine to a 495 response units surface of a stem-loop duplex oligonucleotide (A) and 504 response units surface of a single-stranded oligonucleotide (B). The equilibrium level of binding was determined for each furamidine concentration for the duplex oligonucleotide (C) or the single-stranded oligonucleotides (D). The graphs represent a fit using a two binding-site model for the stem-loop duplex oligonucleotide (C) or a single binding-site model for the single-stranded oligonucleotide (D). Twofold increments of furamidine concentration (0.097, 0.19, 0.39, 0.78, 1.56, 3.125, 6.25, 12.5 and 25 µM) were used.[2]. Antony S, et al. Novel high-throughput electrochemiluminescent assay for identification of human tyrosyl-DNA phosphodiesterase (Tdp1) inhibitors and characterization of furamidine (NSC 305831) as an inhibitor of Tdp1. Nucleic Acids Res. 2007;35(13):4474-84.
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