Catalog No.S7316

STF-118804 is a highly specific NAMPT inhibitor.

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STF-118804 Chemical Structure

STF-118804 Chemical Structure
Molecular Weight: 461.53

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Product Information

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Product Description

Biological Activity

Description STF-118804 is a highly specific NAMPT inhibitor.
Targets NAMPT [1]
In vitro STF-118804 reduces the viability of B-ALL cell lines containing MLL chromosomal translations, with IC50 values in the low nanomolar range. In addition, leukemic samples from five pediatric ALL patients are also sensitive to STF-118804 in the low nanomolar range. STF-118804 induces leukemia MV411 cell apoptosis without antecedent cell cycle arrest. [1]
In vivo STF-118804 (25 mg/kg twice daily, s.c.) improves survival in an orthotopic xenotransplant model of high-risk acute lymphoblastic leukemia, and effectively depletes leukemia-initiating cells. [1]

Protocol(Only for Reference)

Kinase Assay: [1]

Enzyme Assays The enzymatic activities of NAMPT and NMNAT are measured using in vitro kits and using the Two-Step Method per manufacturer’s instructions. Compounds, NAMPT and/or NMNAT enzymes, and their substrates are mixed and incubated at 30°C for 1 hour. Reagents for the indicator reaction (Wst-1) are then added, and absorbance is read at 450 nm every 5 min at 30°C on a Tecan Infinite M100 multimode plate reader.

Cell Assay: [1]

Cell lines Human cell lines (SEM, MV411, Nalm6, 697, Hal01, REH, SUP-B15 and KP-Y-RL) and primary patient leukemic samples
Concentrations ~10 μM
Incubation Time 72 hours
Method Human cell lines or lineage negative cord blood cells were seeded into 96-well plates (6×105 cells per milliliter). Compounds are added in increasing concentrations, and cells are incubated at 37°C/5% CO2 for 72 hours. To detect viability, CellTiter-Blue reagent is added at 1:10 dilution, and plates are incubated for 4 hours at 37°C/5% CO2 prior to reading on a Flexstation II 384 or a Synergy H1 reader at an excitation of 555 nm and emission detection of 590 nm. Cell viability is also measured by CellTiter-Fluor. The cell-permeable fluorogenic peptide substrate GF-AFC reagent is added at 1:2 dilution, and plates are incubated for 30 min at 37°C/5% CO2 prior to reading on a Synergy H1 reader at an excitation of 380 nm and emission detection of 505 nm. Cord blood cells are enumerated on a hemocytometer, and cell viability is assessed with trypan blue exclusion dye. Inhibitory concentration (IC50) is calculated using Prism software. Primary patient samples are plated in 96-well plates and treated with increasing concentrations of STF-118804 for 48 hours at 37°C in 5% CO2. WST-1 reagent is added to the culture medium (1:10 dilution), and absorbance is measured at 450 nm using a Bio-Rad model 680 microplate reader. All assays are performed in triplicate. IC50 is calculated using CalcuSyn version 2.0 software.

Animal Study: [1]

Animal Models Orthotopic xenograft model of ALL transplanted with MV411 cells
Formulation 20% [w/v] [2-hydroxypropyl]-γ-cyclodextrin/5% [v/v] DMSO
Dosages 25 mg/kg twice daily
Administration s.c.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesMouseRatRabbitGuinea pigHamsterDog
Weight (kg)
Body Surface Area (m2)0.0070.0250.
Km factor36128520
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)


[1] Matheny CJ, et al. Chem Biol. 2013, 20(11), 1352-1363.

Chemical Information

Download STF-118804 SDF
Molecular Weight (MW) 461.53


CAS No. 894187-61-2
Storage 3 years -20℃powder
2 years -80℃in solvent
Synonyms N/A
Solubility (25°C) * In vitro DMSO 61 mg/mL (132.16 mM)
Water <1 mg/mL
Ethanol <1 mg/mL
In vivo
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Name Benzamide, 4-​[5-​methyl-​4-​[[(4-​methylphenyl)​sulfonyl]​methyl]​-​2-​oxazolyl]​-​N-​(3-​pyridinylmethyl)​-

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
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