Thimerosal

• CAT Number: R062315
• CAS Number: 54-64-8
• Molecular Formula: C9H9HgO2S.Na
• Molecular Weight: 404.81
• Purity: ≥95%
• Synonyms: Ethyl[2-(mercapto-κS)benzoato(2-)-κO]mercurate(1-) Sodium; Ethyl[2-mercaptobenzoato(2-)-O,S]mercurate(1-) Sodium; Mercury o-Mercaptobenzoato)-ethyl(hydrogen Sodium Salt; Mercury 2-Mercaptobenzoic Acid Complex; Elcide 73; Elicide; Ethylmercurithiosal
• Storage: Room temperature
• IUPAC Name: sodium;(2-carboxylatophenyl)sulfanyl-ethylmercury
• InChI: InChI=1S/C7H6O2S.C2H5.Hg.Na/c8-7(9)5-3-1-2-4-6(5)10;1-2;;/h1-4,10H,(H,8,9);1H2,2H3;;/q;;2*+1/p-2
• InChIKey: RTKIYNMVFMVABJ-UHFFFAOYSA-L
• SMILES: CC[Hg]SC1=CC=CC=C1C(=O)[O-].[Na+]

Thimerosal（Cat No.:R062315）is an organomercury compound used as a preservative and antiseptic, primarily in vaccines, antivenins, and ophthalmic or nasal products. Chemically known as ethylmercurithiosalicylate, it prevents bacterial and fungal contamination in multi-dose vials. Thimerosal is rapidly metabolized into ethylmercury and thiosalicylate in the body. Though effective and widely used since the 1930s, its inclusion in vaccines has raised safety concerns due to its mercury content, prompting its removal or reduction in many pediatric vaccines. Nonetheless, scientific studies have found no credible evidence linking thimerosal to autism or neurodevelopmental disorders.

Reference

Yan, Xu, and et al. /In Vitro Activity of Thimerosal against Ocular Pathogenic Fungi./Antimicrobial Agents and Chemotherapy 54.1 (2010): 536-39. www.ncbi.gov. Web. 28 Aug. 2012.