NCGC00029283 is a novel inhibitor of Werner syndrome helicase-nuclease (WRN) with IC50s of 2.3 μM, 12.5 μM, and 3.4 μM for WRN, BLM, and FANCJ helicases, respectively.

Physicochemical Properties

Molecular Formula	C18H12FN3O3
Molecular Weight	337.30
Exact Mass	337.086
Elemental Analysis	C, 64.09; H, 3.59; F, 5.63; N, 12.46; O, 14.23
CAS #	714240-31-0
PubChem CID	651756
Appearance	White to yellow solid powder
Density	1.4±0.1 g/cm3
Boiling Point	576.7±60.0 °C at 760 mmHg
Flash Point	302.6±32.9 °C
Vapour Pressure	0.0±1.7 mmHg at 25°C
Index of Refraction	1.647
LogP	5.61
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	3
Heavy Atom Count	25
Complexity	536
Defined Atom Stereocenter Count	0
SMILES	FC1C=CC(=CC=1)C1=NC(C2C(NC3C=CC(=CC=3C=2)OC)=O)=NO1
InChi Key	FJQADEHMIMENRE-UHFFFAOYSA-N
InChi Code	InChI=1S/C18H12FN3O3/c1-24-13-6-7-15-11(8-13)9-14(17(23)20-15)16-21-18(25-22-16)10-2-4-12(19)5-3-10/h2-9H,1H3,(H,20,23)
Chemical Name	3-[5-(4-fluorophenyl)-1,2,4-oxadiazol-3-yl]-6-methoxy-1H-quinolin-2-one
Synonyms	NCGC00029283; NCGC000-29283; NCGC000 29283
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)

Biological Activity

ln Vitro	In U2-OS cells, NCGC00029283 (0-100 μM; 24-72 h) efficiently inhibits cell proliferation[1].
Cell Assay	Cell Proliferation Assay[1] Cell Types: U2-OS cells Tested Concentrations: 1 μM, 10 μM, 100 μM Incubation Duration: 24 h, 48 h, 72 h Experimental Results: demonstrated a reduction in U2-OS cell proliferation.
References	[1]. A high-throughput screen to identify novel small molecule inhibitors of the Werner Syndrome Helicase-Nuclease (WRN). PLoS One. 2019 Jan 9;14(1):e0210525.

Solubility Data

Solubility (In Vitro)

DMSO : ~6.9 mg/mL (~20.6 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 : 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). 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 : PEG300：Tween 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). 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	2.9647 mL	14.8236 mL	29.6472 mL
	5 mM	0.5929 mL	2.9647 mL	5.9294 mL
	10 mM	0.2965 mL	1.4824 mL	2.9647 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.