Molekula
Thimerosal (2-(Ethylmercuriomercapto)benzoic acid sodium salt) 15% w/v solution in water
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Thimerosal is an organomercurial compound primarily used as a preservative in vaccines, cosmetics, and topical antiseptics to prevent microbial contamination. It is a clear, colorless to slightly yellowish solution with broad antimicrobial activity. This product is a 15% w/v aqueous solution of Thimerosal (CAS 54-64-8, molecular formula C9H9HgNaO2S, MW 404.81), classified under GHS as a Danger substance (H302+332, H310, H317, H373, H411). Store at ambient temperature in a tightly sealed container. Molekula supplies Thimerosal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 L — £62.30 per pack ex VAT · £74.76 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless solution, free of insoluble matter |
| Assay | 15 - 15.5% w/v |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90024033 |
| CAS Number | 54-64-8 |
| IUPAC Name | sodium (2-carboxylatophenyl)sulfanyl-ethylmercury |
| EC Number | 200-210-4 |
| Molecular Formula | C9H9HgNaO2S |
| Molecular Weight | 404.81 |
| Exact Mass | 405.9927 |
| SMILES | CC[Hg]SC1=CC=CC=C1C(=O)[O-].[Na+] |
| InChIKey | RTKIYNMVFMVABJ-UHFFFAOYSA-L |
| 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 |
| PubChem CID | 16684434 |
| UN Number | UN2024 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28521010 |
| Tariff Code | 2852100000 |
Safety & GHS
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Toxic
GHS06
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302+332 Harmful if swallowed or inhaled
- H310 Fatal in contact with skin
- H317 May cause an allergic skin reaction
- H373 May cause damage to organs through prolonged or repeated exposure
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+350 IF ON SKIN: Gently wash with soap and water
- P308+313 IF exposed or concerned: Get medical advice/attention
- P410 Protect from sunlight
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Mercurothiolate
- MERTHIOLATE
- Sodium merthiolate
- thimerosal
- Thimerosalate
- Thimerosalum
- Thimerosol
- Thimersalate
- Thiomersal
- Thiomersalate
Frequently asked questions
What is Thimerosal commonly used for?
Thimerosal is primarily used as a preservative in vaccines, cosmetics, and some medical products to prevent bacterial and fungal contamination.
What is the chemical formula and molecular weight of Thimerosal?
The chemical formula is C9H9HgNaO2S, and the molecular weight is 404.81 g/mol.
How should Thimerosal be stored?
Store Thimerosal at ambient temperature in a tightly sealed container, away from direct sunlight and moisture.
What grades or purity levels of Thimerosal does Molekula supply?
Molekula supplies Thimerosal as a 15% w/v solution in water, suitable for pharmaceutical and research applications.
Can Molekula supply Thimerosal in bulk quantities?
Yes, Molekula can provide Thimerosal in bulk, with quantities tailored to your specific requirements—please contact us for details.
What documentation comes with an order of Thimerosal?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.