Thiomersal |
Last updated: 24/05/2024 |
(Also known as: thimerosol; merfamin; merseptyl; merthiolate; thiomerselate) |
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An ethylmercury-containing obsolete fungicide and bactericide | |
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Considered obsolete but may be available in some countries; Banned in many countries | |
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1972, introduced | |
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Once used in verterinary medicine as well as having human pharmaceutical applications. | |
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Cattle; Horses; Pigs; Sheep |
Approval status |
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Not approved | |
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Not approved |
Chemical structure |
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None | |
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C₉H₉HgNaO₂S | |
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CC[Hg]SC1=CC=CC=C1C(=O)[O-].[Na+] | |
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RTKIYNMVFMVABJ-UHFFFAOYSA-L | |
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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 | |
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Yes |
General status |
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Bactericide | |
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Preservative, Bactericide | |
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Organometal fungicide; Organomercury fungicide | |
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Synthetic | |
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54-64-8 | |
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200-210-4 | |
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16684434 | |
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No data found | |
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Dermatologicals: Mercurial products | |
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QD08AK06 | |
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No | |
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404.81 | |
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sodium ethyl(2-mercaptobenzoato-)2-)-O,S) mercurate | |
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mercury((o-carboxyphenyl)thio)ethyl sodium salt | |
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Off-white coloured powder with a characteristic odour |
Formulations |
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1000000 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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Insoluble | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Benzene5 = Verified data used for regulatory purposes |
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Insoluble | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Ether5 = Verified data used for regulatory purposes |
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232 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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357 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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250 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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Degradation |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. | ||||||||||
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Fate indices |
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Known metabolites |
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Terrestrial ecotoxicology |
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91 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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Aquatic ecotoxicology |
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General |
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High (class III) | - | - | ||||||||
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91 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Rat5 = Verified data used for regulatory purposes |
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Faecal excretion accounts for most of the elimination from the body. | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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Health issues |
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Very toxic by inhalation, ingestion, and in contact with skin Renal and kidney toxicant Organomercury compounds have been linked with autism |
Handling issues |
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Will emit toxic fumes when heated to decomposition | |||
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Not listed (Not listed) | |||
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thiomersal | ||
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Record last updated: | 24/05/2024 |
Contact: | aeru@herts.ac.uk |
Please cite as: | Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |