Date published: 2025-12-5

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Daptomycin (CAS 103060-53-3)

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Alternate Names:
Cubicin
Application:
Daptomycin is calcium-dependent lipopeptide antibiotic
CAS Number:
103060-53-3
Purity:
≥96%
Molecular Weight:
1620.67
Molecular Formula:
C72H101N17O26
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Daptomycin is a lipopeptide antibiotic produced by Streptomyces roseosporus with reported in vitro bactericidal activity against gram-positive organisms. As a calcium-dependent antibiotic, Daptomycin has been reported to act on the cytoplasmic membrane and undergo a conformational change upon interaction with lipid membranes in a model system. After the conformational change occurs, the compound is inserted into the membrane and causes significant perturbations. Membrane depolarization and leakage occurs, causing death in susceptible organisms.


Daptomycin (CAS 103060-53-3) References

  1. Correlation of daptomycin bactericidal activity and membrane depolarization in Staphylococcus aureus.  |  Silverman, JA., et al. 2003. Antimicrob Agents Chemother. 47: 2538-44. PMID: 12878516
  2. Daptomycin structure and mechanism of action revealed.  |  Micklefield, J. 2004. Chem Biol. 11: 887-8. PMID: 15271343
  3. Bactericidal agents in the treatment of MRSA infections--the potential role of daptomycin.  |  French, GL. 2006. J Antimicrob Chemother. 58: 1107-17. PMID: 17040922
  4. NMR structural studies of the antibiotic lipopeptide daptomycin in DHPC micelles.  |  Scott, WR., et al. 2007. Biochim Biophys Acta. 1768: 3116-26. PMID: 17945184
  5. Effects of daptomycin in combination with other antimicrobial agents: a review of in vitro and animal model studies.  |  Steenbergen, JN., et al. 2009. J Antimicrob Chemother. 64: 1130-8. PMID: 19825818
  6. Mechanisms of daptomycin resistance in Staphylococcus aureus: role of the cell membrane and cell wall.  |  Bayer, AS., et al. 2013. Ann N Y Acad Sci. 1277: 139-58. PMID: 23215859
  7. Enterococcus faecalis and pathogenic streptococci inactivate daptomycin by releasing phospholipids.  |  Ledger, EVK., et al. 2017. Microbiology (Reading). 163: 1502-1508. PMID: 28942757
  8. Mechanisms of resistance to daptomycin in Staphylococcus aureus.  |  Gómez Casanova, N., et al. 2017. Rev Esp Quimioter. 30: 391-396. PMID: 29082727
  9. Daptomycin: a comparison of two intravenous formulations.  |  Frankenfeld, C., et al. 2018. Drug Des Devel Ther. 12: 1953-1958. PMID: 29988771
  10. Daptomycin resistant Enterococcus faecalis has a mutation in liaX, which encodes a surface protein that inhibits the LiaFSR systems and cell membrane remodeling.  |  Ota, Y., et al. 2021. J Infect Chemother. 27: 90-93. PMID: 32972829
  11. Synergy Mechanisms of Daptomycin-Fosfomycin Combinations in Daptomycin-Susceptible and -Resistant Methicillin-Resistant Staphylococcus aureus: In Vitro, Ex Vivo, and In Vivo Metrics.  |  Mishra, NN., et al. 2022. Antimicrob Agents Chemother. 66: e0164921. PMID: 34694870
  12. The impact of lysyl-phosphatidylglycerol on the interaction of daptomycin with model membranes.  |  Moreira, R. and Taylor, SD. 2022. Org Biomol Chem. 20: 9319-9329. PMID: 36129316
  13. The combination of daptomycin with β-lactam antibiotics is more effective than daptomycin alone for vancomycin-resistant Enterococcus faecium bloodstream infection.  |  Chuang, YC., et al. 2022. J Infect Public Health. 15: 1396-1402. PMID: 36371936

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Daptomycin, 10 mg

sc-202125
10 mg
$88.00

What is density of 100 mg/ml daptomycin solution at 20 C?

Asked by: Trien
~1.5 g/cm<sup>3</sup> (Predicted)
Answered by: Technical Service
Date published: 2024-03-28

What is the appearance of the compound?

Asked by: two2igm05
Thank you for your question. Daptomycin, sc-202125, is in off-white to light yellow powder form.
Answered by: Chemical Support 4
Date published: 2022-12-19

Is this product USP grade?

Asked by: Io5ay
Thank you for your question. This chemical hasn't been manufacturer for USP compliance, however, you can inquire as to the purity of our current lot. Please contact Technical Service if you have further questions concerning this product.
Answered by: Tech Service 9
Date published: 2017-01-27
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Rated 5 out of 5 by from HuangHuang, XL. et al. (PubMed 25151744) reported that long-circulating liposomal Daptomycin enhances protection against systemic methicillin-resistant Staphylococcus aureus infection in mice. -SCBT Publication Review
Date published: 2015-03-23
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Daptomycin is rated 5.0 out of 5 by 1.
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