CAS No. 35457-80-8

Batch: Purity:98
Midecamycin Chemical Structure
Chemical Structure
Check the Midecamycin product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 35457-80-8
Molecular Formula

C41H67NO15

Molecular Weight (MW) 813.97
SMILES CCC(=O)OC1CC(=O)OC(CC=CC=CC(C(CC(C(C1OC)OC2C(C(C(C(O2)C)OC3CC(C(C(O3)C)OC(=O)CC)(C)O)N(C)C)O)CC=O)C)O)C

Biological Activity

Midecamycin is a naturally occurring macrolide antibiotic that targets the bacterial ribosome to inhibit protein synthesis. It binds reversibly to the 50S ribosomal subunit, blocking nascent peptide chain elongation and peptidyl transferase activity. This inhibition of protein translation disrupts essential bacterial cellular functions, leading to bacteriostatic effects against a broad spectrum of Gram-positive and select Gram-negative pathogens. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 100 mg/mL (122.85 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 100 mg/mL
Water Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

Reference

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Note: Technical data last updated: Sep 1, 2026.