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Merck
CN

1659000

USP

Thimerosal

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

2-(Ethylmercuriomercapto)benzoic acid sodium salt, Ethylmercurithiosalicylic acid sodium salt, Mercury-([o-carboxyphenyl]thio)ethyl sodium salt, Sodium ethylmercurithiosalicylate

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About This Item

Linear Formula:
2-(C2H5HgS)C6H4CO2Na
CAS Number:
54-64-8
Molecular Weight:
404.81
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329751274
MDL number:
MFCD00013062
Beilstein/REAXYS Number:
8169555

Key Documents

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Product Name

Thimerosal, United States Pharmacopeia (USP) Reference Standard

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

SMILES string

[Na+].CC[Hg]Sc1ccccc1C([O-])=O

InChI key

RTKIYNMVFMVABJ-UHFFFAOYSA-L

grade

pharmaceutical primary standard

API family

thimerosal

manufacturer/tradename

USP

mp

234-237 °C (dec.) (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

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Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Application

Thimerosal USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Thimerosal Tincture
  • Thimerosal Topical Aerosol®
  • Thimerosal Topical Solution

Biochem/physiol Actions

Thimerosal is a sulfhydryl (thiol) oxidizing reagent capable of inhibiting a wide range of sulfhydryl-dependent enzymes and proteins such as PI3-kinase-dependent methionine synthase, glutamate transport receptors, and Na++K+ dependent ATPases.

Disclaimer

As part of the corporationglobal plan to support the Minamata Convention in eliminatingmercury-containing compounds, as of January 2021 customers will be required toprovide an End-Use Declaration. The sales of thimerosal will be restricted forapproved applications only, such as preservative in vaccine manufacturing,preservative in eye cosmetics, research use within academia (excludingpreservation intent) and as reference material only. The product is notintended for use as a biocide under global biocide regulations, including butnot limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act ,European Biocidal Products Regulation, Canada’s Pest Management RegulatoryAgency, Turkey’s Biocidal Products Regulation,Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR)and others.
For U.S. Customers: Contains mercury; Do not place in trash - dispose according to local, state, or federal laws.

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Other Notes

Sales restrictions may apply.

Legal Information

Aerosol is a registered trademark of Cytec Technology Corp.

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Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2 Oral

target_organs

Kidney

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

非剧毒-急性毒性1
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Thimerosal
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 40(5), 4344-4344 (2020)
Thimerosal Topical Solution
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 4347-4347 (2013)
Thimerosal Topical Aerosol
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 4346-4346 (2018)
Thimerosal Tincture
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 4348-4348 (2013)
Xiaoling Li et al.
Toxicological sciences : an official journal of the Society of Toxicology, 139(2), 452-465 (2014-03-29)
Thimerosal is a vaccine antimicrobial preservative which has long been suspected an iatrogenic factor possibly contributing to neurodevelopmental disorders including autism. The association between infant vaccine thimerosal exposure and autism remains an open question. Although thimerosal has been removed from
View All Related Papers

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