L002 (NSC764414), p300 Inhibitor

Catalog No. size PriceQuantity
M60198-2S 2mg solid $99
M60198-10S 10mg solid $391


Product Information
Molecular Weight: 321.35
Formula: C15H15NO5S
Purity: ≥98%
CAS#: 321695-57-2
Solubility: DMSO up to 100 mM
Chemical Name: 4-((((4-methoxyphenyl)sulfonyl)oxy)imino)-2,6-dimethylcyclohexa-2,5-dienone
Storage: Powder: 4oC 1 year. DMSO: 4oC 3 month; -20oC 1 year.


Biological Activity:

L002 (NSC764414) is a novel selective, cell permeable and reversible inhibitor of p300 histone acetyl transferase (IC50 ~1.98 µM). It has no activity in histone methyltransferases tested, including DOT1, EZH1, G9a, PRMT1, SETD2, SET7-9, SMYD2, and SUV39H2 etc. L002 was shown to occupy Ac-CoA binding pocket of p300, and is less potent to CBP, PCAF, GCN5 and GNAT. It suppresses Histone H3 and H4 acetylation in triple negative breast cancer cell line MDAMB-468 as well as in HCT116 cell line and blocks p300-mediated STAT3 phosphorylation in pancreatic cancer cell line MIA Paca-2. L002 can suppress tumor growth and histone acetylation in a mouse MDA-MB-468 xenograft model.


How to Use:


  • In vitro:  L002 was used at 5-30 µM final concentration in various in vitro assays. 
  • In vivo: L002 was administered through IP injection at 500 µg/100 µl twice a week for 3 weeks in xenografts models.




  • 1. Yang H, et al. Small-molecule inhibitors of acetyltransferase p300 identified by high-throughput screening are potent anticancer agents. (2013) Mol Cancer Ther. 12(5):610-20.

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

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