Molekula
Thimerosal Ph. Eur
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 Ph. Eur is a mercury-containing preservative used in pharmaceuticals and vaccines to prevent microbial contamination. It is the sodium salt of ethylmercurithiosalicylic acid (sodium ethylmercurithiosalicylate, also known as thiomersal), effective at low concentrations. CAS: 54-64-8, Molecular Formula: C9H9HgNaO2S, Molecular Weight: 404.81 g/mol. Store at ambient temperature. Signal word: Danger. Molekula supplies Thimerosal Ph. Eur 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White or almost white crystalline powder |
| Melting Point | 103 - 115 °C |
| Identification | Conforms to C and D |
| pH | 6.0 - 8.0 |
| Loss on Drying | ≤ 0.50% |
| Solubility | freely soluble in water, sparingly soluble or soluble in ethanol (96 per cent), practically insoluble in methylene chloride. |
| Appearance of Solution | Conforms to EP |
| Mercury (Hg) | ≤ 0.70% |
| Identification (IR) | Conforms to Reference |
| Assay (dried basis) | 97.0 - 101.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Cream colored, crystalline powder |
| Odour | Characteristic odor |
| log P (octanol/water) | -1.88 |
Source: PubChem CID 16684434 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90034393 |
| CAS Number | 54-64-8 |
| IUPAC Name | sodium (2-carboxylatophenyl)sulfanyl-ethylmercury |
| EC Number | 200-210-4 |
| Molecular Formula | C9H9HgO2S.Na |
| 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 | UN2025 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2852.10.1000 |
| Tariff Code | 2852100000 |
Safety & GHS
-
Toxic
GHS06
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H310 Fatal in contact with skin
- H317 May cause an allergic skin reaction
- H330 Fatal if inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very 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+352 IF ON SKIN: Wash with soap and water
- P307+311 IF exposed: Call a POISON CENTER or doctor/physician
- P410 Protect from sunlight
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
No alternate names recorded for this product.
Frequently asked questions
What is Thimerosal Ph. Eur used for?
Thimerosal Ph. Eur is primarily used as a preservative in pharmaceuticals and vaccines to prevent microbial contamination.
What is the chemical formula and molecular weight of Thimerosal Ph. Eur?
The formula is C9H9HgO2S·Na with a molecular weight of 404.81 g/mol.
How should Thimerosal Ph. Eur be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade of Thimerosal Ph. Eur does Molekula supply?
Molekula supplies Thimerosal Ph. Eur, which meets the European Pharmacopoeia standard.
Can Molekula supply Thimerosal Ph. Eur in bulk?
Yes, Molekula can supply Thimerosal Ph. Eur in bulk quantities—please contact us for current availability and pricing.
What documentation comes with a Thimerosal Ph. Eur order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with regulatory standards.
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.