Fimepinostat (Synonyms: CUDC-907)

Name: Fimepinostat
Brand: MedChemExpress
SKU: HY-13522
Rating: 5.0 (14 reviews)

Cat. No.: HY-13522 Purity: 99.95%: Data Sheet
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Fimepinostat (CUDC-907) potently inhibits class I PI3Ks as well as classes I and II HDAC enzymes with an IC₅₀ of 19/54/39 nM and 1.7/5.0/1.8/2.8 nM for PI3Kα/PI3Kβ/PI3Kδ and HDAC1/HDAC2/HDAC3/HDAC10 , respectively.

For research use only. We do not sell to patients.

CAS No. : 1339928-25-4

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Customer Review

Based on 14 publication(s) in Google Scholar

Other Forms of Fimepinostat:

Fimepinostat mesylate Get quote

14 Publications Citing Use of MCE Fimepinostat

Cell Proliferation/Viability Assay

IHC

In Vivo Efficacy Study

: Fimepinostat purchased from MedChemExpress. Usage Cited in: J Clin Invest. 2025 Jun 2;135(11):e187490. [Abstract]; The indicated cell lines were treated with Fimepinostat , and cell viability was measured by CellTiter-Glo assays. IC50 values are shown.

: Fimepinostat purchased from MedChemExpress. Usage Cited in: J Clin Invest. 2025 Jun 2;135(11):e187490. [Abstract]; The indicated cell lines were treated with 5 nM Fimepinostat, 2 nM Romidepsin, or 500 nM Entinostat for 48 hours. The indicated proteins were measured by Western blot. Histone H3 serves as loading control.

: Fimepinostat purchased from MedChemExpress. Usage Cited in: J Clin Invest. 2025 Jun 2;135(11):e187490. [Abstract]; NSG mice were implanted with DNPC BCaP-1 PDXs and treated with vehicle, Fimepinostat (75 mg/kg orally, 5 times per week), or Romidepsin (1.5 mg/kg intraperitoneally, 2 times per week). Tumor volume (top) and mouse body weight (bottom) are shown.

: Fimepinostat purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2020 Oct 17;39(1):219. [Abstract]; DNA damage detected by comet assay in SCLC cells upon treatment with 10 nM CUDC-907 or 10 μM olaparib alone and in combination for 48 h.

: Fimepinostat purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2020 Oct 17;39(1):219. [Abstract]; Representative immunohistochemistry images of Ki67, cleaved-caspase3 (CC3), c-MYC, Rad51, and Ku80 on PDX tumors treated with CUDC-907 (75 mg/kg) and olaparib alone or in combination.

: Fimepinostat purchased from MedChemExpress. Usage Cited in: Acta Pharmacol Sin. 2019 May;40(5):677-688 [Abstract]; Aspc-1 and Capan-1 cells are collected for Western blotting with the indicated antibodies after treatment with CUDC-907 for 48 h.

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View All Isoforms

PI3Kα PI3Kβ PI3Kγ PI3Kδ PI3KC2α PI3KC2β PI3KC2γ Vps34 PI3K PI3KC3 p120γ

View All HDAC Isoform Specific Products:

View All Isoforms

HDAC HDAC1 HDAC2 HDAC3 HDAC4 HDAC5 HDAC6 HDAC7 HDAC8 HDAC9 HDAC10 HDAC11 HD1 HD2

Biological Activity
Protocol
Purity & Documentation
References
Customer Review

Description

IC₅₀ & Target^[1]

PI3Kα

19 nM (IC₅₀)

PI3Kδ

39 nM (IC₅₀)

PI3Kβ

54 nM (IC₅₀)

PI3Kγ

311 nM (IC₅₀)

HDAC1

1.7 nM (IC₅₀)

HDAC3

1.8 nM (IC₅₀)

HDAC10

2.8 nM (IC₅₀)

HDAC2

5 nM (IC₅₀)

HDAC11

5.4 nM (IC₅₀)

HDAC6

27 nM (IC₅₀)

HDAC8

191 nM (IC₅₀)

HDAC4

409 nM (IC₅₀)

HDAC7

426 nM (IC₅₀)

HDAC9

554 nM (IC₅₀)

HDAC5

674 nM (IC₅₀)

Cellular Effect

Cell Line	Type	Value	Description	References
A2780	EC₅₀	126.25 nM Compound: CUDC-907	Inhibition of HDAC1/2/3 in human A2780S cells assessed as histone H3 acetylation incubated for 6 hrs by cytoblot assay Inhibition of HDAC1/2/3 in human A2780S cells assessed as histone H3 acetylation incubated for 6 hrs by cytoblot assay	[PMID: 27186676]
A2780	EC₅₀	221.75 nM Compound: CUDC-907	Inhibition of HDAC6 in human A2780S cells assessed as tubulin acetylation incubated for 6 hrs by cytoblot assay Inhibition of HDAC6 in human A2780S cells assessed as tubulin acetylation incubated for 6 hrs by cytoblot assay	[PMID: 27186676]
A2780	IC₅₀	6.15 nM Compound: CUDC-907	Cytotoxicity against human A2780S cells assessed as growth inhibition after 24 hrs by MTT assay Cytotoxicity against human A2780S cells assessed as growth inhibition after 24 hrs by MTT assay	[PMID: 27186676]
ASPC1	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human ASPC1 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay Antiproliferative activity against human ASPC1 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay	[PMID: 37875056]
BXPC-3	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human BXPC-3 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay Antiproliferative activity against human BXPC-3 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay	[PMID: 37875056]
Bel-7402	IC₅₀	0.013 μM Compound: 10; CUDC-907	Antiproliferative activity against human Bel7402 cells after 96 hrs by MTT assay Antiproliferative activity against human Bel7402 cells after 96 hrs by MTT assay	[PMID: 31117517]
CFPAC-1	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human CFPAC-1 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay Antiproliferative activity against human CFPAC-1 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay	[PMID: 37875056]
CWR22R	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human 22Rv1 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human 22Rv1 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
Capan-2	IC₅₀	0.007 μM Compound: 10; CUDC-907	Antiproliferative activity against human Capan2 cells after 96 hrs by MTT assay Antiproliferative activity against human Capan2 cells after 96 hrs by MTT assay	[PMID: 31117517]
DU-145	IC₅₀	0.56 μM Compound: 10; CUDC-907	Antiproliferative activity against human DU145 cells after 96 hrs by MTT assay Antiproliferative activity against human DU145 cells after 96 hrs by MTT assay	[PMID: 31117517]
DU-145	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human DU-145 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human DU-145 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
HCT-116	IC₅₀	0.005 μM Compound: 10; CUDC-907	Antiproliferative activity against human HCT116 cells after 96 hrs by MTT assay Antiproliferative activity against human HCT116 cells after 96 hrs by MTT assay	[PMID: 31117517]
HCT-116	IC₅₀	7.34 nM Compound: CUDC-907	Cytotoxicity against human HCT116 cells assessed as growth inhibition after 24 hrs by MTT assay Cytotoxicity against human HCT116 cells assessed as growth inhibition after 24 hrs by MTT assay	[PMID: 27186676]
HCT-8	IC₅₀	0.005 μM Compound: 10; CUDC-907	Antiproliferative activity against human HCT8 cells after 96 hrs by MTT assay Antiproliferative activity against human HCT8 cells after 96 hrs by MTT assay	[PMID: 31117517]
HGC-27	IC₅₀	0.041 μM Compound: 10; CUDC-907	Antiproliferative activity against human HGC27 cells after 96 hrs by MTT assay Antiproliferative activity against human HGC27 cells after 96 hrs by MTT assay	[PMID: 31117517]
HPAC	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human HPAC cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay Antiproliferative activity against human HPAC cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay	[PMID: 37875056]
HeLa	IC₅₀	6.8 nM Compound: CUDC-907	Inhibition of HDAC in human HeLa cell nuclear extract using Ac-Leu-Gly-Lys (Ac)-AMC as substrate after 30 mins by fluorescence assay Inhibition of HDAC in human HeLa cell nuclear extract using Ac-Leu-Gly-Lys (Ac)-AMC as substrate after 30 mins by fluorescence assay	[PMID: 27186676]
HepG2	IC₅₀	0.015 μM Compound: 10; CUDC-907	Antiproliferative activity against human HepG2 cells after 96 hrs by MTT assay Antiproliferative activity against human HepG2 cells after 96 hrs by MTT assay	[PMID: 31117517]
Huh-7	IC₅₀	0.56 μM Compound: 10; CUDC-907	Antiproliferative activity against human HuH7 cells after 96 hrs by MTT assay Antiproliferative activity against human HuH7 cells after 96 hrs by MTT assay	[PMID: 31117517]
K562	IC₅₀	0.28 μM Compound: 10; CUDC-907	Antiproliferative activity against human K562 cells after 96 hrs by MTT assay Antiproliferative activity against human K562 cells after 96 hrs by MTT assay	[PMID: 31117517]
KYSE-30	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human KYSE-30 cells assessed as inhibition of cell growth measured after 72 hrs by CCK-8 assay Antiproliferative activity against human KYSE-30 cells assessed as inhibition of cell growth measured after 72 hrs by CCK-8 assay	[PMID: 37875056]
KYSE-450	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human KYSE-450 cells assessed as inhibition of cell growth measured after 72 hrs by CCK-8 assay Antiproliferative activity against human KYSE-450 cells assessed as inhibition of cell growth measured after 72 hrs by CCK-8 assay	[PMID: 37875056]
KYSE-510	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human KYSE-510 cells assessed as inhibition of cell growth measured after 72 hrs by CCK-8 assay Antiproliferative activity against human KYSE-510 cells assessed as inhibition of cell growth measured after 72 hrs by CCK-8 assay	[PMID: 37875056]
LAPC4	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human LAPC4 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human LAPC4 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
LNCaP	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human LNCaP cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human LNCaP cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
LNCaP C4-2	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human C4-2 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human C4-2 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
LNCaP C4-2B	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human LNCaP C4-2B cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human LNCaP C4-2B cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
MCF7	IC₅₀	0.041 μM Compound: 10; CUDC-907	Antiproliferative activity against human MCF7 cells after 96 hrs by MTT assay Antiproliferative activity against human MCF7 cells after 96 hrs by MTT assay	[PMID: 31117517]
MDA-MB-453	IC₅₀	0.009 μM Compound: 10; CUDC-907	Antiproliferative activity against human MDA-MB-453 cells after 96 hrs by MTT assay Antiproliferative activity against human MDA-MB-453 cells after 96 hrs by MTT assay	[PMID: 31117517]
MIA PaCa-2	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human MIA PaCa-2 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay Antiproliferative activity against human MIA PaCa-2 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay	[PMID: 37875056]
MV4-11	IC₅₀	0.43 nM Compound: CUDC-907	Cytotoxicity against human MV4-11 cells assessed as growth inhibition after 24 hrs by MTT assay Cytotoxicity against human MV4-11 cells assessed as growth inhibition after 24 hrs by MTT assay	[PMID: 27186676]
NCI-H1299	IC₅₀	0.025 μM Compound: 10; CUDC-907	Antiproliferative activity against human NCI-H1299 cells after 96 hrs by MTT assay Antiproliferative activity against human NCI-H1299 cells after 96 hrs by MTT assay	[PMID: 31117517]
NCI-H460	IC₅₀	0.15 μM Compound: 10; CUDC-907	Antiproliferative activity against human NCI-H460 cells after 96 hrs by MTT assay Antiproliferative activity against human NCI-H460 cells after 96 hrs by MTT assay	[PMID: 31117517]
PANC-1	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human PANC-1 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay Antiproliferative activity against human PANC-1 cells assessed as inhibition of cell growth measured after 72 hrs by MTT assay	[PMID: 37875056]
PC-3	IC₅₀	2 nM Compound: 32; CUDC-907	Antiproliferative activity against human PC-3 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay Antiproliferative activity against human PC-3 cells assessed as inhibition of cell growth measured after 72 hrs by SRB assay	[PMID: 37875056]
SW1990	IC₅₀	0.18 μM Compound: 10; CUDC-907	Antiproliferative activity against human SW1990 cells after 96 hrs by MTT assay Antiproliferative activity against human SW1990 cells after 96 hrs by MTT assay	[PMID: 31117517]
Sf9	IC₅₀	0.36 nM Compound: 10; CUDC-907	Inhibition of recombinant C-terminal His/FLAG-tagged HDAC1 (unknown origin) expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr Inhibition of recombinant C-terminal His/FLAG-tagged HDAC1 (unknown origin) expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr	[PMID: 31117517]
Sf9	IC₅₀	1.4 nM Compound: 10; CUDC-907	Inhibition of recombinant human full length C-terminal His-tagged HDAC8 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr Inhibition of recombinant human full length C-terminal His-tagged HDAC8 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr	[PMID: 31117517]
Sf9	IC₅₀	1.6 nM Compound: 10; CUDC-907	Inhibition of recombinant human full length HDAC2 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr Inhibition of recombinant human full length HDAC2 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr	[PMID: 31117517]
Sf9	IC₅₀	1.8 nM Compound: CUDC-907	Inhibition of full length C-terminal His-tagged human recombinant HDAC3/NCOR2 (395 to 489 residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of full length C-terminal His-tagged human recombinant HDAC3/NCOR2 (395 to 489 residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	132 nM Compound: 10; CUDC-907	Inhibition of recombinant human full length HDAC11 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr Inhibition of recombinant human full length HDAC11 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr	[PMID: 31117517]
Sf9	IC₅₀	19 nM Compound: 24; CUDC-907	Inhibition of recombinant human full-length N-terminal GST-tagged p110alpha/untagged full-length p85alpha expressed in baculovirus infected Sf9 cells using PIP2 as substrate by ADP-glo luminescence assay Inhibition of recombinant human full-length N-terminal GST-tagged p110alpha/untagged full-length p85alpha expressed in baculovirus infected Sf9 cells using PIP2 as substrate by ADP-glo luminescence assay	[PMID: 30418766]
Sf9	IC₅₀	19 nM Compound: CUDC-907	Inhibition of full length recombinant human N-terminal GST-tagged p110 alpha/untagged p85 alpha expressed in baculovirus infected insect Sf9 cells using PI:3PS as substrate incubated for 60 mins by ADP-Glo luminescence assay Inhibition of full length recombinant human N-terminal GST-tagged p110 alpha/untagged p85 alpha expressed in baculovirus infected insect Sf9 cells using PI:3PS as substrate incubated for 60 mins by ADP-Glo luminescence assay	[PMID: 27186676]
Sf9	IC₅₀	191 nM Compound: CUDC-907	Inhibition of full length C-terminal His-tagged human recombinant HDAC8 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of full length C-terminal His-tagged human recombinant HDAC8 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	2.8 nM Compound: CUDC-907	Inhibition of human recombinant HDAC10 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of human recombinant HDAC10 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	27 nM Compound: CUDC-907	Inhibition of full length human recombinant HDAC6 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of full length human recombinant HDAC6 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	39 nM Compound: 24; CUDC-907	Inhibition of recombinant human full-length N-terminal GST-tagged p110delta/untagged full-length p85alpha expressed in baculovirus infected Sf9 cells using PIP2 as substrate by ADP-glo luminescence assay Inhibition of recombinant human full-length N-terminal GST-tagged p110delta/untagged full-length p85alpha expressed in baculovirus infected Sf9 cells using PIP2 as substrate by ADP-glo luminescence assay	[PMID: 30418766]
Sf9	IC₅₀	39 nM Compound: CUDC-907	Inhibition of N-terminal His6-tagged recombinant full-length human p110delta/untagged recombinant full length human p85alpha expressed in baculovirus infected insect Sf9 cells incubated for 2 hrs by kinase-glo assay Inhibition of N-terminal His6-tagged recombinant full-length human p110delta/untagged recombinant full length human p85alpha expressed in baculovirus infected insect Sf9 cells incubated for 2 hrs by kinase-glo assay	[PMID: 27186676]
Sf9	IC₅₀	409 nM Compound: CUDC-907	Inhibition of N-terminal GST/C-terminal His-tagged human recombinant HDAC4 (627 to 1084 residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of N-terminal GST/C-terminal His-tagged human recombinant HDAC4 (627 to 1084 residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	426 nM Compound: CUDC-907	Inhibition of N-terminal GST-tagged human recombinant HDAC7 (518 to end residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of N-terminal GST-tagged human recombinant HDAC7 (518 to end residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	445 nM Compound: 10; CUDC-907	Inhibition of recombinant human full length HDAC4 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr Inhibition of recombinant human full length HDAC4 expressed in baculovirus infected Sf9 insect cells using Ac-peptide as substrate preincubated for 15 mins followed by substrate addition and measured after 1 hr	[PMID: 31117517]
Sf9	IC₅₀	5 nM Compound: CUDC-907	Inhibition of full length human recombinant HDAC2 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of full length human recombinant HDAC2 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	5.4 nM Compound: CUDC-907	Inhibition of full length human recombinant HDAC11 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of full length human recombinant HDAC11 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	54 nM Compound: 24; CUDC-907	Inhibition of recombinant human full-length N-terminal GST-tagged p110beta/untagged full-length p85alpha expressed in baculovirus infected Sf9 cells using PIP2 as substrate by ADP-glo luminescence assay Inhibition of recombinant human full-length N-terminal GST-tagged p110beta/untagged full-length p85alpha expressed in baculovirus infected Sf9 cells using PIP2 as substrate by ADP-glo luminescence assay	[PMID: 30418766]
Sf9	IC₅₀	54 nM Compound: CUDC-907	Inhibition of recombinant human p110beta expressed in baculovirus infected insect Sf9 cells incubated for 1 hr by ADP-gloreagen assay Inhibition of recombinant human p110beta expressed in baculovirus infected insect Sf9 cells incubated for 1 hr by ADP-gloreagen assay	[PMID: 27186676]
Sf9	IC₅₀	554 nM Compound: CUDC-907	Inhibition of C-terminal His-tagged human recombinant HDAC9 (604 to 1066 residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of C-terminal His-tagged human recombinant HDAC9 (604 to 1066 residues) expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
Sf9	IC₅₀	674 nM Compound: CUDC-907	Inhibition of human recombinant HDAC5 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay Inhibition of human recombinant HDAC5 expressed in baculovirus infected insect Sf9 cells using Ac-peptide-AMC as substrate assessed as release of AMC preincubated for 15 mins followed by substrate addition measured after 1 hr by fluorescence assay	[PMID: 27186676]
U-87MG ATCC	IC₅₀	0.007 μM Compound: 10; CUDC-907	Antiproliferative activity against human U87 cells after 96 hrs by MTT assay Antiproliferative activity against human U87 cells after 96 hrs by MTT assay	[PMID: 31117517]

In Vitro

Fimepinostat is a potent pan-inhibitor of HDAC classes I and II enzymes and observed that its potency against class I HDACs is similar to that of LBH589 and greater than that of SAHA. Fimepinostat is also a potent inhibitor of class I PI3K kinases with an IC₅₀ of 19, 54, and 39 nM for PI3Kα, PI3Kβ, and PI3Kδ, respectively. Fimepinostat markedly induces p21 protein in H460, a non-small cell lung cancer (NSCLC) cell line. Fimepinostat causes the reduction of both p-STAT3 (Y-705) and p-SRC in RPMI-8226 multiple myeloma cells and reduces both phosphorylated and total protein levels of MET and EGFR as well as HER2 and HER3 in H1975 NSCLC cells and BT-474 breast cancer cells, respectively. Fimepinostat induces caspase-3 and -7 activation in HCT-116 colon cancer cells in a dose-dependent manner. Fimepinostat potently inhibits the growth of cancer cells derived from both hematologic and solid tumors. Fimepinostat potently inhibits the proliferation of cells expressing either mutant or wild-type PI3K^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Oral administration of Fimepinostat inhibits growth of the Daudi cancer cell xenografts in a dose-dependent manner. Tumor stasis is observed at 100 mg/kg in this model without obvious toxicity. Importantly, in the same model, Fimepinostat achieves better efficacy than GDC-0941, SAHA, or a combination of these 2 compounds given at their maximal tolerated doses (MTD). Furthermore, Fimepinostat causes tumor regression or stasis after intravenous (50 mg/kg) or oral administration (100 mg/kg) in a xenograft tumor model of SU-DHL4 diffuse large B-cell lymphoma (DLBCL) and causes tumor stasis in KRAS-mutant A549 NSCLC cell xenografts^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

Molecular Weight

508.55

Formula

C₂₃H₂₄N₈O₄S

CAS No.

1339928-25-4

Appearance

Solid

Color

White to light yellow

SMILES

O=C(C1=CN=C(N(CC2=CC3=NC(C4=CC=C(OC)N=C4)=NC(N5CCOCC5)=C3S2)C)N=C1)NO

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Solvent & Solubility

In Vitro:

DMSO : 43.75 mg/mL (86.03 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

DMF : 5 mg/mL (9.83 mM; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.9664 mL	9.8319 mL	19.6637 mL
5 mM	0.3933 mL	1.9664 mL	3.9328 mL
10 mM	0.1966 mL	0.9832 mL	1.9664 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.08 mg/mL (4.09 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (4.09 mM); Clear solution

This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: 2.08 mg/mL (4.09 mM); Suspended solution; Need ultrasonic

This protocol yields a suspended solution of 2.08 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL Corn oil, and mix evenly.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 50% PEG300 50% Saline
Solubility: 10 mg/mL (19.66 mM); Suspended solution; Need ultrasonic
Protocol 2

Add each solvent one by one: 30% SBE-β-CD in Saline
Solubility: 10 mg/mL (19.66 mM); Suspended solution; Need ultrasonic

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 99.95%

Select Batch:

Data Sheet (278 KB) SDS (396 KB)

COA (247 KB) HNMR (191 KB) RP-HPLC (221 KB)

Handling Instructions (2659 KB)

References

[1]. Qian C, et al. Cancer network disruption by a single molecule inhibitor targeting both histone deacetylase activity and phosphatidylinositol 3-kinase signaling. Clin Cancer Res. 2012 Aug 1;18(15):4104-13. [Content Brief]

Kinase Assay ^[1]	The activities of classes I and II HDACs are measured using the Color-de-Lys assay system. The activity of PI3K is measured using the ADP-Glo luminescent kinase assay. Recombinant PI3K protein, a complex of N-terminal GST-tagged recombinant full-length human p110 and untagged recombinant full-length human p85, is coexpressed in a baculovirus-infected Sf9 cell expression system^[1]. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Assay ^[1]	Human cancer cell lines are plated at densities of 5,000 to 10,000 per well in 96-well flat-bottomed plates with the recommended culture medium. The cells are then incubated with compounds (e.g.,Fimepinostat) at various concentrations for 72 hours in culture medium supplemented with 0.5% (v/v) FBS. Growth inhibition is assessed by assay of cellular ATP content using the Perkin-Elmer ATPlite kit^[1]. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration ^[1]	Mice^[1] Six- to 8-week-old female athymic (nude nu/nu CD-1) or severe combined immunodeficient (SCID) mice obtained from Charles River Laboratories are injected subcutaneously with 3 to 20×10⁶ cells in a medium suspension of 100 to 200 μL into the right hind flank region. Varying doses of Fimepinostat, standard anticancer agents, or vehicle are administered orally or via tail vein injection as indicated. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References	[1]. Qian C, et al. Cancer network disruption by a single molecule inhibitor targeting both histone deacetylase activity and phosphatidylinositol 3-kinase signaling. Clin Cancer Res. 2012 Aug 1;18(15):4104-13. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMF / DMSO	1 mM	1.9664 mL	9.8319 mL	19.6638 mL	49.1594 mL
DMF / DMSO	5 mM	0.3933 mL	1.9664 mL	3.9328 mL	9.8319 mL
DMSO	10 mM	0.1966 mL	0.9832 mL	1.9664 mL	4.9159 mL
	15 mM	0.1311 mL	0.6555 mL	1.3109 mL	3.2773 mL
	20 mM	0.0983 mL	0.4916 mL	0.9832 mL	2.4580 mL
	25 mM	0.0787 mL	0.3933 mL	0.7866 mL	1.9664 mL
	30 mM	0.0655 mL	0.3277 mL	0.6555 mL	1.6386 mL
	40 mM	0.0492 mL	0.2458 mL	0.4916 mL	1.2290 mL
	50 mM	0.0393 mL	0.1966 mL	0.3933 mL	0.9832 mL
	60 mM	0.0328 mL	0.1639 mL	0.3277 mL	0.8193 mL
	80 mM	0.0246 mL	0.1229 mL	0.2458 mL	0.6145 mL

Fimepinostat Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Fimepinostat1339928-25-4CUDC-907CUDC907CUDC 907PI3KHDACApoptosisPhosphoinositide 3-kinaseHistone deacetylasesInhibitorinhibitorinhibit

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Fimepinostat (Synonyms: CUDC-907)

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