Molekula
Thiomersal Solution 15% W/V Aqueous Solution
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
Thiomersal Solution is a mercury-based organic compound, primarily used as a preservative in vaccines, cosmetics, and pharmaceutical products to prevent microbial contamination. This 15% w/v aqueous solution contains 15% thiomersal (sodium ethylmercurythiosalicylate) dissolved in water, ensuring broad-spectrum antimicrobial protection. CAS 54-64-8, molecular formula C9H9HgNaO2S, molecular weight 404.81 g/mol. Store at ambient conditions; handle with caution (Danger signal word). Molekula supplies Thiomersal Solution 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.
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100 mL — £30.90 per pack ex VAT · £37.08 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 to Pale Straw Solution |
| Assay | 14.5-15.5%w/v |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90027547 |
| 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
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 Thiomersal Solution 15% W/V used for?
Thiomersal is primarily used as a preservative in pharmaceuticals, vaccines, and cosmetics to prevent microbial contamination.
What is the chemical formula and molecular weight of Thiomersal?
The chemical formula is **C₉H₉HgNaO₂S**, and the molecular weight is **404.81 g/mol**.
What safety precautions should be taken when handling Thiomersal?
Thiomersal is classified with the **signal word 'Danger'**—handle with care, avoid inhalation, and use appropriate PPE (gloves, goggles).
How should Thiomersal Solution 15% W/V be stored?
Store at **ambient temperature** in a tightly sealed container, away from light and moisture.
Does Molekula supply Thiomersal in bulk quantities?
Yes, we can supply Thiomersal in bulk—please contact us for custom packaging and pricing details.
What documentation comes with an order of Thiomersal Solution?
Each order includes a **Certificate of Analysis (CoA)**, Safety Data Sheet (SDS), and a product specification sheet.
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.