SMILES:

C[N]1N=NN=C1SCC2=C(N3C(SC2)C(NC(=O)C(NC(=O)C4=CNC(=CC4=O)C)C5=CC=C(O)C=C5)C3=O)C(O)=O
Cefpiramide Chemical Structure
Chemical Structure
Check the Cefpiramide product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (6R,7R)-7-[[(2R)-2-(4-hydroxyphenyl)-2-[(6-methyl-4-oxo-1H-pyridine-3-carbonyl)amino]acetyl]amino]-3-[(1-methyltetrazol-5-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CAS Number 70797-11-4
Molecular Formula

C25H24N8O7S2
Molecular Weight (MW) 612.64
SMILES C[N]1N=NN=C1SCC2=C(N3C(SC2)C(NC(=O)C(NC(=O)C4=CNC(=CC4=O)C)C5=CC=C(O)C=C5)C3=O)C(O)=O
InChIKey PWAUCHMQEXVFJR-PMAPCBKXSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 100 mg/mL (163.22 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
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.