RHPS 4 methosulfate

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Cat.No. 5311 - RHPS 4 methosulfate | C22H17F2N2.CH3O4S | CAS No. 390362-78-4
Description: Telomerase inhibitor
Chemical Name: 3,11-Difluoro-6,8,13-trimethylquino[4,3,2-kl]acridinium methylsulfate
Purity: ≥98% (HPLC)

Biological Activity

Telomerase inhibitor. Inhibits growth of medulloblastoma and glioblastoma cells in vitro. Induces telomere injury and apoptosis, and reduces growth in CG5 breast cancer cell xenografts in mice.

Technical Data

M. Wt 458.48
Formula C22H17F2N2.CH3O4S
Storage Store at +4°C
Purity ≥98% (HPLC)
CAS Number 390362-78-4
PubChem ID 9804187
Smiles C[N+]4=C2C3=C(C=C(C)C=C3C5=C4C=CC(F)=C5)N(C)C1=CC=C(F)C=C12.COS(=O)([O-])=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 9.17 20
water 4.58 10mM with gentle warming

Preparing Stock Solutions

The following data is based on the product molecular weight 458.48. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.18 mL 10.91 mL 21.81 mL
5 mM 0.44 mL 2.18 mL 4.36 mL
10 mM 0.22 mL 1.09 mL 2.18 mL
50 mM 0.04 mL 0.22 mL 0.44 mL

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Product Datasheets

Safety Datasheet


References are publications that support the products' biological activity.

Lagah et al (2014) RHPS4 G-quadruplex ligand induces anti-proliferative effects in brain tumor cells. PLoS One 9 e86187 PMID: 24454961

Salvati et al (2007) Telomere damage induced by the G-quadruplex ligand RHPS4 has an antitumor effect. J.Clin.Invest. 117 3236 PMID: 17932567

Phatak et al (2007) Telomere uncapping by the G-quadruplex ligand RHPS4 inhibits clonogenic tumour cell growth in vitro and in vivo consistent with a cancer stem cell targeting mechanism. Br.J.Cancer 96 1223 PMID: 17406367

If you know of a relevant reference for RHPS 4 methosulfate, please let us know.

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Cancer Research Product Guide

A collection of over 750 products for cancer research, the guide includes research tools for the study of:

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