NSC697923 --- Ub-conjugating Enzyme (E2) Inhibitor

Catalog No. size PriceQuantity
M60202-2S 2 mg solid $79
M60202-10S 10 mg solid $316


NSC697923 is a cell permeable, potent and selective inhibitor of the Ub-conjugating enzyme (E2) complex Ubc13-Uev1A. It selectively inhibits PMA-induced NF-κB activation, and also inhibits IκBα phosphorylation by both RANKL and LPS. It impedes the formation of the Ubc13 and ubiquitin thioester conjugate and suppresses constitutive NF-κB activity in ABC-DLBCL cells. It inhibits the proliferation and survival of ABC-DLBCL cells and GCB-DLBCL cells, suggesting the Ubc13-Uev1A may be crucial for DLBCL growth. In neuroblastoma (NB) cell lines, NSC697923 shows cytotoxic effect, and inhibits both anchorage-dependent and -independent colony formation. It also shows in vivo antitumor efficacy in NB orthotopic xenografts.

Product information

CAS Number: 343351-67-7

Molecular Weight: 267.26

Formula: C11H9NO5S

Chemical Name: 2-nitro-5-tosylfuran

Smiles: CC1C=CC(=CC=1)S(=O)(=O)C1=CC=C(O1)[N+]([O-])=O


InChi: InChI=1S/C11H9NO5S/c1-8-2-4-9(5-3-8)18(15,16)11-7-6-10(17-11)12(13)14/h2-7H,1H3

Technical Data

Appearance: Solid Power.

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO up to 100 mM

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

NSC697923 was used at 1-5 µM final concentration in various in vitro assays.

In Vivo:

NSC697923 was administered by IP injection at 10 mg/kg once per day in SH-SY5Y and NGP xenografts.


  1. Pulvino M, et al. Inhibition of proliferation and survival of diffuse large B-cell lymphoma cells by a small-molecule inhibitor of the ubiquitin-conjugating enzyme Ubc13-Uev1A. (2012) Blood. 120(8):1668-77.
  2. Cheng J, et al. A small-molecule inhibitor of UBE2N induces neuroblastoma cell death via activation of p53 and JNK pathways. (2014) Cell Death Dis. 5:e1079.

Products are for research use only. Not for human use.


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