Epetraborole hydrochloride

Catalog No. size PriceQuantity
M6629-2 2mg solid $100
M6629-10 10mg solid $406


Cas:1234563-16-6 (HCl)

Product Information:

Epetraborole hydrochloride  is a potent and selective leucyl-tRNA synthetase inhibitor. Epetraborole was in development for the treatment of infections caused by multidrug-resistant Gram-negative pathogens. GSK2251052 is a novel boron-containing antibiotic that inhibits bacterial leucyl tRNA synthetase. All Clostridium perfringens strains had GSK2251052 MICs of >32 μg/ml.


Chemical Formula: C11H17BClNO4


Exact Mass: 237.1172


Molecular Weight: 273.52


Elemental Analysis: C, 48.30; H, 6.26; B, 3.95; Cl, 12.96; N, 5.12; O, 23.40





GSK 2251052



AN 3365



GSK 052




Chemical Name: (S)-3-(Aminomethyl)-7-(3-hydroxypropoxy)-1-hydroxy-1,3-dihydro-2,1-benzoxaborole hydrochloride


InChi Key:



InChi Code: InChI=1S/C11H16BNO4.ClH/c13-7-10-8-3-1-4-9(16-6-2-5-14)11(8)12(15)17-10;/h1,3-4,10,14-15H,2,5-7,13H2;1H/t10-;/m1./s1


Smiles Code:




Technical Data:


Appearance: 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





  1. O'Dwyer K, Spivak AT, Ingraham K, Min S, Holmes DJ, Jakielaszek C, Rittenhouse S, Kwan AL, Livi GP, Sathe G, Thomas E, Van Horn S, Miller LA, Twynholm M, Tomayko J, Dalessandro M, Caltabiano M, Scangarella-Oman NE, Brown JR. Bacterial resistance to leucyl-tRNA synthetase inhibitor GSK2251052 develops during treatment of complicated urinary tract infections. Antimicrob Agents Chemother. 2015 Jan;59(1):289-98. doi: 10.1128/AAC.03774-14. Epub 2014 Oct 27. PubMed PMID: 25348524; PubMed Central PMCID: PMC4291364.


  1. Wu L, Vogt FG, Liu DQ. Flow-injection MS/MS for gas-phase chiral recognition and enantiomeric quantitation of a novel boron-containing antibiotic (GSK2251052A) by the mass spectrometric kinetic method. Anal Chem. 2013 May 21;85(10):4869-74. doi: 10.1021/ac401079x. Epub 2013 May 7. PubMed PMID: 23650921.


  1. Tenero D, Bowers G, Rodvold KA, Patel A, Kurtinecz M, Dumont E, Tomayko J, Patel P. Intrapulmonary pharmacokinetics of GSK2251052 in healthy volunteers. Antimicrob Agents Chemother. 2013 Jul;57(7):3334-9. doi: 10.1128/AAC.02483-12. Epub 2013 May 6. PubMed PMID: 23650164; PubMed Central PMCID: PMC3697385.


  1. Ross JE, Scangarella-Oman N, Jones RN. Determination of disk diffusion and MIC quality control guidelines for GSK2251052: a novel boron-containing antibacterial. Diagn Microbiol Infect Dis. 2013 Apr;75(4):437-9. doi: 10.1016/j.diagmicrobio.2013.01.007. Epub 2013 Feb 23. PubMed PMID: 23461830.


  1. Goldstein EJ, Citron DM, Tyrrell KL, Merriam CV. Comparative in vitro activities of GSK2251052, a novel boron-containing leucyl-tRNA synthetase inhibitor, against 916 anaerobic organisms. Antimicrob Agents Chemother. 2013 May;57(5):2401-4. doi: 10.1128/AAC.02580-12. Epub 2013 Mar 4. PubMed PMID: 23459482; PubMed Central PMCID: PMC3632912.


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

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