WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 200460

CAS#: 866323-14-0

Description: Belinostat is a novel hydroxamic acid-type histone deacetylase (HDAC) inhibitor with antineoplastic activity. Belinostat targets HDAC enzymes, thereby inhibiting tumor cell proliferation, inducing apoptosis, promoting cellular differentiation, and inhibiting angiogenesis. This agent may sensitize drug-resistant tumor cells to other antineoplastic agents, possibly through a mechanism involving the down-regulation of thymidylate synthase. Belinostat was approved in 2014 for relapsed or refractory peripheral T-cell lymphoma.

Chemical Structure

CAS# 866323-14-0

Theoretical Analysis

MedKoo Cat#: 200460
Name: Belinostat
CAS#: 866323-14-0
Chemical Formula: C15H14N2O4S
Exact Mass: 318.06743
Molecular Weight: 318.34
Elemental Analysis: C, 56.59; H, 4.43; N, 8.80; O, 20.10; S, 10.07.

Size Price Shipping out time Quantity
50mg USD 150 Same day
100mg USD 250 Same day
200mg USD 450 Same day
500mg USD 650 Same day
1g USD 950 Same day
2g USD 1650 Same day
5g USD 3250 Same day
10g USD 5650 Same day
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Pricing updated 2021-03-01. Prices are subject to change without notice.

Belinostat, purity > 98%, is in stock. Same day shipping out after order is received.

Related CAS #: 866323-14-0   414864-00-9    

Synonym: PXD 101; PXD101; PXD-101; PX105684; PX-105684; PX 105684; NSC726630; brand name: Beleodaq.

IUPAC/Chemical Name: (E)-N-hydroxy-3-[3-(phenylsulfamoyl)phenyl]prop-2-enamide.


InChi Code: InChI=1S/C15H14N2O4S/c18-15(16-19)10-9-12-5-4-8-14(11-12)22(20,21)17-13-6-2-1-3-7-13/h1-11,17,19H,(H,16,18)/b10-9+

SMILES Code: O=C(NO)/C=C/C1=CC=CC(S(=O)(NC2=CC=CC=C2)=O)=C1

White Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Preparing Stock Solutions

The following data is based on the product molecular weight 318.34 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Odenike O, Halpern A, Godley LA, Madzo J, Karrison T, Green M, Fulton N, Mattison RJ, Yee KW, Bennett M, Koval G, Malnassy G, Larson RA, Ratain MJ, Stock W. A phase I and pharmacodynamic study of the histone deacetylase inhibitor belinostat plus azacitidine in advanced myeloid neoplasia. Invest New Drugs. 2014 Dec 9. [Epub ahead of print] PubMed PMID: 25483416.

2: Kim MJ, Lee JS, Park SE, Yi HJ, Jeong IG, Kang JS, Yun J, Lee JY, Ro S, Lee JS, Choi EK, Hwang JJ, Kim CS. Combination treatment of renal cell carcinoma with belinostat and 5-fluorouracil: A role for oxidative stress-induced DNA damage and HSP90-regulated thymidine synthase. J Urol. 2014 Nov 26. pii: S0022-5347(14)05012-5. doi: 10.1016/j.juro.2014.11.091. [Epub ahead of print] PubMed PMID: 25433307.

3: Foss F, Advani R, Duvic M, Hymes KB, Intragumtornchai T, Lekhakula A, Shpilberg O, Lerner A, Belt RJ, Jacobsen ED, Laurent G, Ben-Yehuda D, Beylot-Barry M, Hillen U, Knoblauch P, Bhat G, Chawla S, Allen LF, Pohlman B. A Phase II trial of Belinostat (PXD101) in patients with relapsed or refractory peripheral or cutaneous T-cell lymphoma. Br J Haematol. 2014 Nov 17. doi: 10.1111/bjh.13222. [Epub ahead of print] PubMed PMID: 25404094.

4: Bodiford A, Bodge M, Talbott MS, Reddy NM. Profile of belinostat for the treatment of relapsed or refractory peripheral T-cell lymphoma. Onco Targets Ther. 2014 Oct 24;7:1971-7. doi: 10.2147/OTT.S59269. eCollection 2014. Review. PubMed PMID: 25368524; PubMed Central PMCID: PMC4216035.

5: Thomas A, Rajan A, Szabo E, Tomita Y, Carter CA, Scepura B, Lopez-Chavez A, Lee MJ, Redon CE, Frosch A, Peer CJ, Chen Y, Piekarz R, Steinberg SM, Trepel JB, Figg WD, Schrump DS, Giaccone G. A phase I/II trial of belinostat in combination with cisplatin, doxorubicin, and cyclophosphamide in thymic epithelial tumors: a clinical and translational study. Clin Cancer Res. 2014 Nov 1;20(21):5392-402. doi: 10.1158/1078-0432.CCR-14-0968. Epub 2014 Sep 4. PubMed PMID: 25189481; PubMed Central PMCID: PMC4216756.

6: Poole RM. Belinostat: first global approval. Drugs. 2014 Sep;74(13):1543-54. doi: 10.1007/s40265-014-0275-8. PubMed PMID: 25134672.

7: Thompson CA. Belinostat approved for use in treating rare lymphoma. Am J Health Syst Pharm. 2014 Aug 15;71(16):1328. doi: 10.2146/news140056. PubMed PMID: 25074945.

8: McDermott J, Jimeno A. Belinostat for the treatment of peripheral T-cell lymphomas. Drugs Today (Barc). 2014 May;50(5):337-45. doi: 10.1358/dot.2014.50.5.2138703. Review. PubMed PMID: 24918834.

9: Savickiene J, Treigyte G, Valiuliene G, Stirblyte I, Navakauskiene R. Epigenetic and molecular mechanisms underlying the antileukemic activity of the histone deacetylase inhibitor belinostat in human acute promyelocytic leukemia cells. Anticancer Drugs. 2014 Sep;25(8):938-49. doi: 10.1097/CAD.0000000000000122. PubMed PMID: 24800886.

10: Kirschbaum MH, Foon KA, Frankel P, Ruel C, Pulone B, Tuscano JM, Newman EM. A phase 2 study of belinostat (PXD101) in patients with relapsed or refractory acute myeloid leukemia or patients over the age of 60 with newly diagnosed acute myeloid leukemia: a California Cancer Consortium Study. Leuk Lymphoma. 2014 Oct;55(10):2301-4. doi: 10.3109/10428194.2013.877134. Epub 2014 Feb 24. PubMed PMID: 24369094; PubMed Central PMCID: PMC4143479.

Additional Information

Belinostat (PXD101, trade name Beleodaq) is a drug under development by TopoTarget for the treatment of hematological malignancies and solid tumors. It is a histone deacetylase inhibitor. In 2007 preliminary results were released from the Phase II clinical trial of intravenous belinostat in combination with carboplatin and paclitaxel for relapsed ovarian cancer. Final results in late 2009 of a phase II trial for T-cell lymphoma were encouraging. Belinostat has been granted orphan drug and fast track designation by the FDA, and was approved in the US for the use against peripheral T-cell lymphoma.  (