Molecular Weight: 570.7 g/mol

Procaine penicillin G Chemical Structure
Chemical Structure
Check the Procaine penicillin G 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
DMSO 100 mg/mL (175.22 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 20 mg/mL
Water 10 mg/mL
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

IUPAC Name 2-(diethylamino)ethyl 4-aminobenzoate;(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
CAS Number 54-35-3
Molecular Formula

C29H38N4O6S
Molecular Weight (MW) 570.7
SMILES CCN(CC)CCOC(=O)C1=CC=C(N)C=C1.CC2(C)SC3C(NC(=O)CC4=CC=CC=C4)C(=O)N3C2C(O)=O
InChIKey WHRVRSCEWKLAHX-LQDWTQKMSA-N

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