BioTech Encyclopedia

Elements · ← Tc Technetium · Rh Rhodium →

Ru Ruthenium

Ruthenium compounds have been tested as anticancer drugs.

Basic facts

SymbolRu
Atomic number44
Standard atomic weight101.1
Group8
Period5
Blockd-block
CategoryTransition metal
Standard stateSolid
Discovered1827

Source: PubChem, Ruthenium (periodic table data, retrieved 2026-10-19). Group and period follow the standard 18-column periodic table.

Biotech uses & experiments

biomedical

prototype biomedical 2004

First human trial of NAMI-A

In a phase I study in 24 patients with solid tumours, the ruthenium compound NAMI-A, which had shown antimetastatic activity in preclinical studies, caused painful blisters at high doses; 300 mg/m2/day was advised for further testing.

Built / tested: NAMI-A

As reported in: Rademaker-Lakhai, van den Bongard, Pluim et al. (2004). A Phase I and Pharmacological Study with Imidazolium- trans- DMSO-imidazole-tetrachlororuthenate, a Novel Ruthenium Anticancer Agent. Clinical Cancer Research. doi:10.1158/1078-0432.ccr-03-0746

Read free · preprint / author manuscript

Patents

Search Google Patents for ruthenium in biological and medical uses: all patents · recent applications (2022+)

A patent is a legal claim, not proof that something works. See the Patents page.