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

MedKoo CAT#: 406453

CAS#: 863924-64-5

Description: BSc2118 is a potent proteasome inhibitor. BSc2118 shows significant antimyeloma activity and may be considered as a promising agent in cancer drug development. BSc2118 is also a promising new candidate for stroke therapy, which may in addition alleviate recombinant tissue-plasminogen activator-induced brain toxicity.

Chemical Structure

CAS# 863924-64-5

Theoretical Analysis

MedKoo Cat#: 406453
Name: BSc2118
CAS#: 863924-64-5
Chemical Formula: C28H43N3O7
Exact Mass: 533.3101
Molecular Weight: 533.66
Elemental Analysis: C, 63.02; H, 8.12; N, 7.87; O, 20.99

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Synonym: BSc2118; BSc-2118; BSc 2118.

IUPAC/Chemical Name: tert-butyl (S)-3-((S)-2-(((benzyloxy)carbonyl)amino)-4-methylpentanamido)-4-(((S)-4-methyl-1-oxopentan-2-yl)amino)-4-oxobutanoate


InChi Code: InChI=1S/C28H43N3O7/c1-18(2)13-21(16-32)29-25(34)23(15-24(33)38-28(5,6)7)30-26(35)22(14-19(3)4)31-27(36)37-17-20-11-9-8-10-12-20/h8-12,16,18-19,21-23H,13-15,17H2,1-7H3,(H,29,34)(H,30,35)(H,31,36)/t21-,22-,23-/m0/s1

SMILES Code: CC(C)C[C@@H](C(N[C@H](C(N[C@H](C=O)CC(C)C)=O)CC(OC(C)(C)C)=O)=O)NC(OCC1=CC=CC=C1)=O

Appearance: white solid powder

Purity: >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).

Solubility: 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: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 533.66 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.

Recalculate based on batch purity %
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: Fuchs O. Targeting of NF-kappaB signaling pathway, other signaling pathways and epigenetics in therapy of multiple myeloma. Cardiovasc Hematol Disord Drug Targets. 2013 Mar 1;13(1):16-34. Review. PubMed PMID: 23534949.

2: Doeppner TR, Mlynarczuk-Bialy I, Kuckelkorn U, Kaltwasser B, Herz J, Hasan MR, Hermann DM, Bähr M. The novel proteasome inhibitor BSc2118 protects against cerebral ischaemia through HIF1A accumulation and enhanced angioneurogenesis. Brain. 2012 Nov;135(Pt 11):3282-97. doi: 10.1093/brain/aws269. PubMed PMID: 23169919.

3: Sterz J, Jakob C, Kuckelkorn U, Heider U, Mieth M, Kleeberg L, Kaiser M, Kloetzel PM, Sezer O, von Metzler I. BSc2118 is a novel proteasome inhibitor with activity against multiple myeloma. Eur J Haematol. 2010 Aug;85(2):99-107. doi: 10.1111/j.1600-0609.2010.01450.x. Epub 2010 Mar 31. PubMed PMID: 20374272.

4: Młynarczuk-Biały I, Roeckmann H, Kuckelkorn U, Schmidt B, Umbreen S, Gołab J, Ludwig A, Montag C, Wiebusch L, Hagemeier C, Schadendorf D, Kloetzel PM, Seifert U. Combined effect of proteasome and calpain inhibition on cisplatin-resistant human melanoma cells. Cancer Res. 2006 Aug 1;66(15):7598-605. PubMed PMID: 16885359.

Additional Information