1. Anti-infection
  2. Bacterial
  3. Lefamulin acetate

Lefamulin acetate (Synonyms: BC-3781 acetate)

Cat. No.: HY-16908A Purity: 95.84%
Handling Instructions

Lefamulin acetate (BC-3781 acetate) is an orally active antibiotic for community-acquired bacterial pneumonia (CABP) treatment. Lefamulin acetate (BC-3781 acetate) is the first semi-synthetic pleuromutilin for systemic treatment of bacterial infections in humans. Lefamulin acetate (BC-3781 acetate) inhibits protein synthesis by binding to the peptidyl transferase center of the 50S bacterial ribosome, preventing the binding of transfer RNA for peptide transfer.

For research use only. We do not sell to patients.

Lefamulin acetate Chemical Structure

Lefamulin acetate Chemical Structure

CAS No. : 1350636-82-6

Size Price Stock Quantity
5 mg USD 350 In-stock
Estimated Time of Arrival: December 31
10 mg USD 550 In-stock
Estimated Time of Arrival: December 31
50 mg USD 1100 In-stock
Estimated Time of Arrival: December 31
100 mg USD 1800 Get quote
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Based on 1 publication(s) in Google Scholar

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Description

Lefamulin acetate (BC-3781 acetate) is an orally active antibiotic for community-acquired bacterial pneumonia (CABP) treatment. Lefamulin acetate (BC-3781 acetate) is the first semi-synthetic pleuromutilin for systemic treatment of bacterial infections in humans. Lefamulin acetate (BC-3781 acetate) inhibits protein synthesis by binding to the peptidyl transferase center of the 50S bacterial ribosome, preventing the binding of transfer RNA for peptide transfer[1].

In Vitro

Lefamulin acetate (BC-3781 acetate) has activity against the resistant gram-postive organisms, including taphylococcus aureus (MRSA) (MIC50=0.12 μg/ml; MIC90=0.25 μg/ml); β-Hemolytic strepococcus (MIC50=0.03 μg/ml; MIC90=0.03 μg/ml); Viridans group Streptococcus (MIC50=0.12 μg/ml; MIC90=0.5 μg/ml), Enterocossus faecium (MIC50=0.12 μg/ml; MIC90=4 μg/ml), Streptococcus pneumonia (MIC50=0.12 μg/ml; MIC90 =0.25 μg/ml)[1].
Lefamulin has activity against gram-negative organisms, including Haemophilus influenza (MIC50=1 μg/ml; MIC90=0.12 μg/ml) and Moraxella cotarrhali (MIC50=2 μg/ml; MIC90=0.25 μg/ml)[1].

Clinical Trial
Molecular Weight

567.78

Formula

C₃₀H₄₉NO₇S

CAS No.

1350636-82-6

SMILES
Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (176.12 mM)

H2O : < 0.1 mg/mL (insoluble)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.7612 mL 8.8062 mL 17.6125 mL
5 mM 0.3522 mL 1.7612 mL 3.5225 mL
10 mM 0.1761 mL 0.8806 mL 1.7612 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (4.40 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: 2.5 mg/mL (4.40 mM); Clear solution; Need ultrasonic

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (4.40 mM); Clear solution

*All of the co-solvents are provided by MCE.
References
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Keywords:

LefamulinBC-3781BC3781BC 3781BacterialInhibitorinhibitorinhibit

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Product name:
Lefamulin acetate
Cat. No.:
HY-16908A
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