Molecular Weight: 216.26 g/mol

6-Aminopenicillanic acid Chemical Structure
Chemical Structure
Check the 6-Aminopenicillanic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

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
4-Methylpyridine 4 mg/mL
DMSO 1 mg/mL (4.62 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)
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).

Chemical Information

CAS Number 551-16-6
Molecular Formula

C8H12N2O3S

Molecular Weight (MW) 216.26
SMILES CC1(C(N2C(S1)C(C2=O)N)C(=O)O)C

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