Thiomersal, 97%

Name: Thiomersal, 97%
Brand: Vaqora Chemicals
SKU: VQ-002572

About Thiomersal, 97%

Thiomersal is a carbohydrate (Extra Pure grade) carrying the CAS registry number 54-64-8, specified at 97% purity. The compound has the formula C9H9HgNaO2S, corresponding to a molecular weight of 404.82 g/mol. Systematically, it is named sodium (2-carboxylatophenyl)sulfanyl-ethylmercury. Common synonyms include Ethylmercurithiosalicylic acid sodium salt and Sodium ethylmercurithiosalicylate.

It is supplied as a white to pale cream crystalline powder. Literature values give a melting point of 234-237 °C (dec.). Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for glycobiology research, microbiology media, biochemical assays and pharmaceutical synthesis. Our customers for this product work in academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 10 g, 25 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Glycobiology research
Microbiology media
Biochemical assays
Pharmaceutical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Thiomersal, 97%
Catalogue No.	VQ-002572
CAS Number	54-64-8
IUPAC name	sodium (2-carboxylatophenyl)sulfanyl-ethylmercury
Molecular formula	C₉H₉HgNaO₂S
Molecular weight	404.82 g/mol
Exact mass	405.9927
Grade	Extra Pure
Purity / assay	97%
HSN code	29309090
InChIKey	RTKIYNMVFMVABJ-UHFFFAOYSA-L
SMILES	CC[Hg]SC1=CC=CC=C1C(=O)[O-].[Na+]
PubChem CID	16684434

Physical properties
Physical form	Powder
Appearance	White to pale cream crystalline powder
Melting point	234-237 °C (dec.)
H-bond donors / acceptors	0 / 3
TPSA	65.4 Å²
UN number	UN 2025
Synonyms	2-(Ethylmercuriomercapto)benzoic acid sodium salt, Ethylmercurithiosalicylic acid sodium salt, Mercury-([o-carboxyphenyl]thio)ethyl sodium salt, Sodium ethylmercurithiosalicylate, thimerosal, Thiomersalate, Mercurothiolate, Sodium merthiolate, Thimerosalate, Thimerosol, Thimersalate, Merfamin

Safety & hazard information (GHS)

Toxic

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H300+H310+H330Fatal if swallowed, in contact with skin or if inhaled
H300Fatal if swallowed
H301Toxic if swallowed
H310Fatal in contact with skin
H330Fatal if inhaled
H360May damage fertility or the unborn child
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P260, P262, P264, P270, P271, P273, P280, P284, P301 + P316, P302 + P352, P304 + P340, P316, P318, P319, P320, P321, P330, P361 + P364, P391, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 54-64-8

Thimersoal Used as a Preservative for Sucrose Buffer Solution

CAS: 54-64-8
Formula: C₉H₉HgNaO₂S
MW: 404.82 g/mol

VQ-046570

Cell Culture

Thiomersal, cell culture tested

CAS: 54-64-8
Formula: C₉H₉HgNaO₂S
MW: 404.82 g/mol

VQ-046134

Plant Culture

Thiomersal, plant tissue culture tested 97.00–101.00%

CAS: 54-64-8
Formula: C₉H₉HgNaO₂S
MW: 404.82 g/mol

VQ-045573

USP

Thiomersal, USP

CAS: 54-64-8
Formula: C₉H₉HgNaO₂S
MW: 404.82 g/mol

VQ-046766

Frequently asked questions

What is the CAS number of Thiomersal, 97%?

The CAS Registry Number of Thiomersal, 97% is 54-64-8. It is also known as 2-(Ethylmercuriomercapto)benzoic acid sodium salt, Ethylmercurithiosalicylic acid sodium salt, Mercury-([o-carboxyphenyl]thio)ethyl sodium salt.

What is the molecular formula and molecular weight of Thiomersal, 97%?

Thiomersal, 97% has the molecular formula C9H9HgNaO2S and a molecular weight of 404.82 g/mol. Its IUPAC name is sodium (2-carboxylatophenyl)sulfanyl-ethylmercury.

Which grade and pack sizes of Thiomersal, 97% can I order?

We supply Thiomersal, 97% in Extra Pure (97%) grade, in 10 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Thiomersal, 97%?

Yes. Every lot of Thiomersal, 97% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Thiomersal, 97% be shipped internationally?

Yes. Thiomersal, 97% is classified as hazardous (UN 2025), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.