CAS Registry Number

CAS 54-64-8 — Thimerosal (2-(Ethylmercuriomercapto)benzoic acid sodium salt)

Thimerosal is an organomercury compound primarily used as a preservative in vaccines, cosmetics, and some medical products to prevent bacterial and fungal contamination. It is also historically used in some eye drops and topical antiseptics. This chemical has a CAS number of 54-64-8, with the molecular formula C9H9HgO2S·Na and a molecular weight of 404.81. It should be stored at ambient conditions and handled with caution, as it carries a "Danger" signal word due to its toxicity. Molekula supplies Thimerosal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Thimerosal (2-(Ethylmercuriomercapto)benzoic acid sodium salt) 15% w/v solution in water · Thiomersal Solution 15% W/V Aqueous Solution · Thimerosal Ph. Eur