2D Structure
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2D chemical structural formula diagram.

3D Structure
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This 3D model represents a theoretically simulated conformation and is for reference only.

Check the TMPyP4 tosylate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name tetrakis(4-methylbenzenesulfonate);5,10,15,20-tetrakis(1-methylpyridin-1-ium-4-yl)-21,23-dihydroporphyrin
CAS Number 36951-72-1
Molecular Formula

C72H66N8O12S4
Molecular Weight (MW) 1363.6
SMILES CC1=CC=C(C=C1)[S]([O-])(=O)=O.CC2=CC=C(C=C2)[S]([O-])(=O)=O.CC3=CC=C(C=C3)[S]([O-])(=O)=O.CC4=CC=C(C=C4)[S]([O-])(=O)=O.C[N+]5=CC=C(C=C5)C6=C7C=CC(=N7)C(=C8[NH]C(=C(C9=CC=[N+](C)C=C9)C%10=NC(=C(C%11=CC=C6[NH]%11)C%12=CC=[N+](C)C=C%12)C=C%10)C=C8)C%13=CC=[N+](C)C=C%13
InChIKey AKZFRMNXBLFDNN-UHFFFAOYSA-K

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
Water 50 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).

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