Delanzomib (CEP-18770)

Catalog No. size PriceQuantity
M7051-2 2mg solid $141
M7051-10 10mg solid $556


Delanzomib, also known as CEP-18770, is An orally bioavailable synthetic P2 threonine boronic acid inhibitor of the chymotrypsin-like activity of the proteasome, with potential antineoplastic activity. Proteasome inhibitor CEP 18770 represses the proteasomal degradation of a variety of proteins, including inhibitory kappaBalpha (IkappaBalpha), resulting in the cytoplasmic sequestration of the transcription factor NF-kappaB; inhibition of NF-kappaB nuclear translocation and transcriptional up-regulation of a variety of cell growth-promoting factors; and apoptotic cell death in susceptible tumor cell populations.

Product information

CAS Number: 847499-27-8

Molecular Weight: 413.28

Formula: C21H28BN3O5




CEP 18770

Chemical Name: [(1R)-1-[[(2S,3R)-3-Hydroxy-2-[[(6-phenylpyridin-2-yl)carbonyl]amino]-1-oxobutyl]amino]-3-methylbutyl]boronic acid.

Smiles: CC(C)C[C@H](NC(=O)[C@@H](NC(=O)C1=CC=CC(=N1)C1C=CC=CC=1)[C@@H](C)O)B(O)O


InChi: InChI=1S/C21H28BN3O5/c1-13(2)12-18(22(29)30)24-21(28)19(14(3)26)25-20(27)17-11-7-10-16(23-17)15-8-5-4-6-9-15/h4-11,13-14,18-19,26,29-30H,12H2,1-3H3,(H,24,28)(H,25,27)/t14-,18+,19+/m1/s1

Technical Data

Appearance: Solid Power.

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

Solubility: Soluble in DMSO, not in water

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: ≥360 days 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:

Delanzomib (CEP-18770; 20 nM; 12-24 hours) treatment results in a progressive appearance of cleaved caspases-3, -7, and -9 between 12 and 24 hours’exposure in the human MM cell lines, RPMI-8226, and U266. Delanzomib (CEP-18770; 5-40 nM; 4-24 hours) treatment induces an accumulation of ubiquitinated proteins over 4 to 8 hours. Delanzomib (CEP-18770) inhibits endothelial cell survival, vasculogenesis, and osteoclastogenesis in vitro; and displays a favorable cytotoxicity profile toward normal cells.

In Vivo:

Delanzomib (CEP-18770; 7.8-13 mg/kg; oral administration; twice a week; for 4 weeks) treatment results in a more sustained pharmacodynamic inhibition of proteasome activity in tumors relative to normal tissues, complete tumor regression of multiple myeloma (MM) xenografts and improves overall median survival in a systemic model of human MM.


  1. Fuchs, Ota. Proteasome inhibition as a therapeutic strategy in patients with multiple myeloma. Multiple Myeloma (2009), 101-125. CODEN: 69MVM2 AN 2010:737549
  2. Genin, E.; Reboud-Ravaux, M.; Vidal, J. Proteasome inhibitors: recent advances and new perspectives in medicinal chemistry. Current Topics in Medicinal Chemistry (Sharjah, United Arab Emirates) (2010), 10(3), 232-256. CODEN: CTMCCL ISSN:1568-0266. CAN 152:516315 AN 2010:423458
  3. Dick, Lawrence R.; Fleming, Paul E. \Building on bortezomib: second-generation proteasome inhibitors as anti-cancer therapy. Drug Discovery Today (2010), 15(5/6), 243-249. CODEN: DDTOFS ISSN:1359-6446. AN 2010:318415

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

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