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532310 c-Myc Inhibitor IV, KJ-Pyr-9 - CAS 581073-80-5 - Calbiochem


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CAS #Empirical Formula

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      OverviewA cell-permeable, blood-brain barrier permeant, bioavailable trisubstituted pyridine compound that inhibits c-Myc transcriptional activity. Shown to directly bind to both the monomeric c-Myc (Kd = 6.5 nM) and to c-Myc-Max heterodimer (Kd = 13.4 nM) with high affinity and disrupt c-Myc-Max interaction. Displays a very weak affinity towards Max-Max homodimer (Kd > 1 µM). Also interferes with Max homodimerization, albeit to a lesser extent than c-Myc-Max heterodimerization. Shown to inhibit the c-Myc-driven proliferation of NCI-H460, MDA-MB-231, and SUM-159PT and several other cancer cell lines (IC50 = 5-10 µM). Also diminishes the proliferation of Burkitt lymphoma cell lines expressing high levels of c-Myc (IC50 = 2.5 µM). Suppresses the growth of MDA-MB-231 cells in a xenografted nude mice model (10 mg/kg, i.p., q.d.).

      Please note that the molecular weight for this compound is batch-specific due to variable water content.
      Catalogue Number532310
      Brand Family Calbiochem®
      Synonyms4-(2-(Furan-2-yl)-6-(4-nitrophenyl)pyridin-4-yl)benzamide, KJPyr9, Krohnke Pyridine-9
      ReferencesHart, J.R., et al. 2014. Proc. Natl. Acad. Sci. USA. 111, 12556.
      Product Information
      CAS number581073-80-5
      FormBrown powder
      Hill FormulaC₂₂H₁₅N₃O₄
      Chemical formulaC₂₂H₁₅N₃O₄
      Quality LevelMQ100
      Biological Information
      Primary TargetMyc homodimer
      Secondary targetMyc-Max
      Purity≥97% by HPLC
      Physicochemical Information
      Cell permeableY
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Storage and Shipping Information
      Ship Code Ambient Temperature Only
      Toxicity Standard Handling
      Storage +2°C to +8°C
      Protect from Light Protect from light
      Do not freeze Ok to freeze
      Special InstructionsFollowing reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
      Packaging Information
      Packaged under inert gas Packaged under inert gas
      Transport Information
      Supplemental Information
      Global Trade Item Number
      Catalog Number GTIN
      5.32310.0001 04055977287202


      c-Myc Inhibitor IV, KJ-Pyr-9 - CAS 581073-80-5 - Calbiochem SDS


      Safety Data Sheet (SDS) 


      Reference overview
      Hart, J.R., et al. 2014. Proc. Natl. Acad. Sci. USA. 111, 12556.
      Data Sheet

      Note that this data sheet is not lot-specific and is representative of the current specifications for this product. Please consult the vial label and the certificate of analysis for information on specific lots. Also note that shipping conditions may differ from storage conditions.

      Revision27-January-2015 JSW
      Synonyms4-(2-(Furan-2-yl)-6-(4-nitrophenyl)pyridin-4-yl)benzamide, KJPyr9, Krohnke Pyridine-9
      DescriptionA cell-permeable, trisubstituted pyridine compound that displays Myc-selective affinity (Kd = 6.5 nM/Myc homodimer, 13.4 nM/Myc-Max dimer, >1.0 µM/Max homodimer) and is 4-times more potent against Myc-Max than Max-Max in DNA-binding assays. Effectively prevents focal microtumors formation following N-Myc, c-Myc, as well as ATG- or CAG-c-Myc transformation of cultured chick embryo fibroblasts/CEF (>99.9% inhibition at 10 µM in ATG-c-Myc-transformed cultures), while exhibiting much reduced or little potency against cultures transformed by v-Src (no inhibition up to 20 µM), v-Jun or PI 3-K H1047R (45.5% inhibition at 10 µM). Selectively inhibits Myc-dependent proliferation of human & avian cultures (Effective conc. 25 to 50 µM; IC50 1 to 10 µM), while exhibiting little potency against Myc-independent growths of human skin fibroblasts, non-transformed, v-jun-transformed, or methylcholanthrene-transformed quail embryo fibroblasts even at a high concentration of 50 µM. Reported to suppress MDA-MB-231-derived tumor expansion in mice (10 mg/kg/d i.p.) in vivo with a concomitant upregulation of N-Myc downregulated gene 1/NDRG1 protein level in tumor tissue. Pharmacokinetics studies reveal good blood-brain barrier permeability in mice ([Drug] = 3.5 µM/plasma & 12.4 µM/brain 4 h post single 10 mg/kg i.p. dosage) and a plasma half-life of 1.84 h in rats following a single i.v. dose of 1 mg/kg.
      FormBrown powder
      Intert gas (Yes/No) Packaged under inert gas
      CAS number581073-80-5
      Chemical formulaC₂₂H₁₅N₃O₄
      Purity≥97% by HPLC
      SolubilityDMSO (50 mg/ml). Use only fresh DMSO for reconstitution.
      Storage Protect from light
      +2°C to +8°C
      Do Not Freeze Ok to freeze
      Special InstructionsFollowing reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
      Toxicity Standard Handling
      ReferencesHart, J.R., et al. 2014. Proc. Natl. Acad. Sci. USA. 111, 12556.