Absence of mutagenic activity for monosodium cyanurate

Area of Science:

• Toxicology
• Genotoxicity testing
• Chemical safety assessment

Background:

• Assessing the mutagenic potential of chemical compounds is crucial for public health and environmental safety.
• Monosodium cyanurate is a chemical compound requiring evaluation for potential adverse effects.

Purpose of the Study:

• To comprehensively evaluate the mutagenic potential of monosodium cyanurate using a battery of in vitro and in vivo genotoxicity tests.
• To determine if monosodium cyanurate poses a risk of causing genetic mutations.

Main Methods:

• In vitro assays included the Salmonella microbial assay and mouse lymphoma assay for gene mutations, and Chinese hamster ovary cell assay for chromosomal damage.
• In vivo assessment involved examining rat bone marrow cells for chromosomal aberrations after oral administration of monosodium cyanurate.
• Tests were conducted with and without metabolic activation, and at concentrations exceeding the compound's solubility.

Main Results:

• Monosodium cyanurate did not exhibit mutagenicity in Salmonella strains TA 98, 100, 1535, and 1537 up to 10,000 µg/plate.
• No forward mutations were induced in mouse lymphoma cells at the TK locus up to 2000 µg/ml.
• No significant sister chromatid exchanges were observed in Chinese hamster ovary cells up to 1500 µg/ml.
• In vivo, no chromosomal aberrations were detected in rat bone marrow cells at doses up to 5000 mg/kg.

Conclusions:

• Monosodium cyanurate demonstrated a lack of mutagenic activity across multiple in vitro genotoxicity test systems.
• In vivo studies corroborated the in vitro findings, showing no evidence of chromosomal damage in rats.
• The results indicate that monosodium cyanurate is not mutagenic under the tested conditions.