CAS No. 20324-87-2

Batch: Purity:99.02
AMI-1 Chemical Structure
Chemical Structure
Check the AMI-1 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name disodium;4-hydroxy-7-[(5-hydroxy-7-sulfonatonaphthalen-2-yl)carbamoylamino]naphthalene-2-sulfonate
CAS Number 20324-87-2
Molecular Formula

C21H14N2Na2O9S2

Molecular Weight (MW) 548.45
SMILES C1=CC2=C(C=C(C=C2C=C1NC(=O)NC3=CC4=CC(=CC(=C4C=C3)O)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]
InChIKey MOUNHKKCIGVIDI-UHFFFAOYSA-L

Ordering Information

Biological Activity

AMI-1 is a selective histone methyltransferase inhibitor that targets yeast Hmt1p (IC50 of 3.0 μM) and human PRMT1 (IC50 of 8.8 μM). By selectively blocking arginine methyltransferase activity without affecting lysine methyltransferases, AMI-1 impairs intracellular protein arginine methylation. This disruption alters pre-mRNA splicing, transcriptional regulation, and nuclear protein trafficking pathways, ultimately suppressing cellular proliferation. [1]

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 (182.33 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 22 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.