| Agent Name | Thimerosal |
|---|---|
| CAS Number | 54-64-8 |
| Formula | C9-H9-Hg-O2-S.Na |
| Major Category | Other Uses |
| Synonyms | Collyrium Eye Wash; ((o-Carboxyphenyl)thio)ethylmercury sodium salt; Aeroaid spray; Elcide 73; Elcide 75; Elicide; Estivin; Ethyl (sodium o-mercaptobenzoato)mercury; Ethyl(2-mercaptobenzoato-S)mercury sodium salt; Ethylmercurithiosalicyclic acid, sodium salt; Ethylmercurithiosalicylate sodium; Ethylmercurithiosalicylate sodium salt; Ethylmercurithiosalicylic acid sodium salt; Ethylmerkurithiosalicilan sodny [Czech]; Mercurate(1-), ethyl(2-mercaptobenzoate(2-)-O,S)-, sodium; salt; Mercurate(1-), ethyl(o-mercaptobenzoato(2-))-, sodium; Mercurothiolate; Mercurothiolatum; Mercury, ((o-carboxyphenyl)thio)ethyl-, sodium salt; Mercury, ethyl(2-mercaptobenzoate-S)-, sodium salt; Mercury, ethyl(2-mercaptobenzoato-S)-, sodium salt; Merfamin; Merphol; Merseptyl (VAN); Merthiolate; Merthiolate salt; Merthiolate sodium; Mertorgan; Merzonin; Merzonin sodium; Nosemack; SET; Sodium 2-(ethylmercurithio)benzoate; Sodium ethylmercuric thiosalicylate; Sodium ethylmercurithiosalicylate; Sodium merthiolate; Sodium o-(ethylmercurithio)benzoate; Thimerosal; Thimerosalate; Thimerosalum; Thimerosol; Thimersalate; Thiomersal; Thiomersalat; Thiomersalate; Thiomersalum [INN-Latin]; Tiomersal [INN-Spanish]; Tiomersale [DCIT]; Vitaseptol Loesung; o-(Ethylmercurithio)benzoic acid sodium salt; [ChemIDplus] UN2025 |
| Category | Preservatives |
| Description | Light cream-colored crystalline powder with a slight odor; [CAMEO] |
| Sources/Uses | Used as a preservative in eye drops, vaccines, and cleaners for contact lenses; [Kanerva, p. 1173] Used in vaccines until 1999 at a concentration of 25 ug per 0.5 ml dose of several common vaccines; [Rom, p. 992] Has been removed from US-licensed vaccines for children under 7 years--either thimerosal-free or contain only trace amounts (<0.5 ug Hg/dose) with the exception of some inactivated influenza vaccines. [Goldfrank, p. 812] |
| Comments | Allergic contact dermatitis reported in a medical assistant (ophthalmology) and in veterinarians; [Kanerva, p. 1173] Thimerosal is metabolized to ethylmercury and thiosalicylate. [Rom, p. 992] See "Mercury, aryl compounds" and the linked diseases. |
| Reference Link | |
| Exposure Assessment | |
| Skin Designation (ACGIH) | Yes |
| TLV (ACGIH) | 0.1 mg/m3, as Hg |
| PEL (OSHA) | 0.1 mg/m3, as Hg |
| IDLH (NIOSH) | 10 mg/m3, as Hg |
| Reference Link | |
| Adverse Effects | |
| Skin Sensitizer | Yes |
| Links to Other NLM Databases | |
| Health Studies | Human Health Effects from Hazardous Substances Data Bank: |
| Toxicity Information | |
| Chemical Information | |
| Biomedical References | |
| Related Information in HazMap | |
| Diseases | Occupational diseases associated with exposure to this agent: |
| Processes | Industrial Processes with risk of exposure: |