Molekula

Thimerosal Ph. Eur

CAS 54-64-8 C9H9HgO2S.Na MW 404.81 Made to order

Thimerosal Ph. Eur is a mercury-containing preservative used in pharmaceuticals and vaccines to prevent microbial contamination. It is a sodium salt of 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.

CoA by batch

[Na+].O=C1[O-][Hg+2]([S-]C=2C=CC=CC12)[C...

Overview

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
Assay (calculated on the dried basis)	97.0 - 101.0%
Mercury (Hg)	≤ 0.70%
Identification (IR)	Conforms to Reference
Date of Manufacturing	DD/MM/YYYY

Storage & handling

Property	Value
Storage Temperature	Ambient
Transport Class	6.1
Packing Group	II
Shelf Life	36 months
Acidity	Neutral

Identification

Property	Value
CAS Number	54-64-8
Molecular Formula	C9H9HgO2S.Na
Molecular Weight	404.81
SMILES	[Na+].O=C1[O-][Hg+2]([S-]C=2C=CC=CC12)[CH2-]C
EC / UN Number	2025
REACH Code	Y110
TSCA Listed	Yes
HTS Code	2852.10.1000
Tariff Code	2852100000

Safety & GHS

Danger

Explosive GHS01
Flammable GHS02
Corrosive GHS05
Toxic GHS06

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

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

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.

Pricing & pack sizes

Pack sizes & pricing

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Pricing on request — packs available from research to bulk quantities.

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

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.

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Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

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Documents Pricing