CAS No. 153773-82-1

Batch: Purity:99.45
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Ertapenem sodium Chemical Structure
Chemical Structure
Check the Ertapenem sodium product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name sodium 3-[[(2S,4S)-4-[[(4R,5S,6S)-2-carboxy-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-en-3-yl]sulfanyl]pyrrolidine-2-carbonyl]amino]benzoate
CAS Number 153773-82-1
Molecular Formula

C22H24N3NaO7S
Molecular Weight (MW) 497.5
SMILES CC1C2C(C(=O)N2C(=C1SC3CC(NC3)C(=O)NC4=CC=CC(=C4)C(=O)O)C(=O)[O-])C(C)O.[Na+]
InChIKey ZXNAQFZBWUNWJM-HRXMHBOMSA-M

Ordering Information

Biological Activity

Ertapenem sodium is a long-acting, broad-spectrum carbapenem β-lactam antibiotic that targets penicillin-binding proteins (PBPs). By binding to PBPs, ertapenem inhibits the final transpeptidation step of peptidoglycan synthesis in the bacterial cell wall. This disruption impairs cell wall integrity, triggering osmotic instability and ultimately leading to bacterial cell lysis and lethality across a wide range of Gram-positive and Gram-negative pathogens.

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 (201.0 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 100 mg/mL
Ethanol 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).

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