CUDC-101,HDAC/EGFR/HER2 Inhibitor

Catalog No. size PriceQuantity
M60092-5S 5 mg solid $69
M60092-50S 50 mg solid $470


CUDC-101 is a potent multi-target inhibitor targeting HDAC, EGFR and HER2 with IC50 of 4.4 nM, 2.4 nM, and 15.7 nM, respectively.It is specific for class I and class II HDACs, not for class III Sir-type HDACs, and has > 50-fold selectivity against other protein kinases. CUDC-101 displays broad antiproliferative activity in many human cancer cell types with IC50 of 0.04-0.80 μM, exhibiting a higher potency than erlotinib, lapatinib, and combinations of vorinostat with either erlotinib or lapatinib in most cases. It can inhibit EGFR and Her2 phosphorylation, reduce cell proliferation and induce apoptosis in HCC827 non-small cell lung cancer (NSCLC) xenografts. It inhibits EGFR and induces upregulation of acetylated histone H3 in a dosedependent fashion. In vivo CUDC-101 promotes tumor regression in various cancer xenograft models such as non-small cell lung cancer (NSCLC), liver, breast, head and neck, colon, and pancreatic cancers. Currently it is in Phase I clinical trials for advanced head and neck, gastric, breast, liver and non-small cell lung cancer tumors.

Product information

CAS Number: 1012054-59-9

Molecular Weight: 434.49

Formula: C24H26N4O4

Chemical Name: 7-(4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-yloxy)-N-hydroxyheptanamide



InChi: InChI=1S/C24H26N4O4/c1-3-17-9-8-10-18(13-17)27-24-19-14-22(21(31-2)15-20(19)25-16-26-24)32-12-7-5-4-6-11-23(29)28-30/h1,8-10,13-16,30H,4-7,11-12H2,2H3,(H,28,29)(H,25,26,27)

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:

CUDC-101 was used at 1 µM final concentration in vitro and in cellular assays.

In Vivo:

CUDC-101 was IP or IV dosed to mice at 120 mg/kg once per day in the xenograft tumor model of Hep-G2, H358, A549, MDA-MB468, HCT116, CAL-27, HepG2, or HPAC.


  1. Cai X, et al. Discovery of 7-(4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-yloxy)-N-hydroxyheptanamide (CUDc-101) as a potent multi-acting HDAC, EGFR, and HER2 inhibitor for the treatment of cancer. (2010) J Med Chem. 53(5):2000-9.
  2. Lai CJ, et al. CUDC-101, a multitargeted inhibitor of histone deacetylase, epidermal growth factor receptor, and human epidermal growth factor receptor 2, exerts potent anticancer activity. (2010) Cancer Res. 70(9):3647-56.

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


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