Thimerosal USP/BP/EP

Article number:


CAS No.:




Chemical description:

IUPAC Name: Ethyl(2-mercaptobenzoato-(2-)-O,S) mercurate(1-) sodium Sodium Ethylmercuric thiosalicylate


Merthiolat; Thiomersal; Sodium Ethylmercuric salicylate; Mercurothiolate; Merfamin; Merthiolate; Merthiolate sodium; Sodium 2-(ethylmercurithio)benzoate; Tiomersal; o-(Ethylmercurithio)benzoic acid sodium salt; (2-(ethylmercuriomercapto))benzoic acid, sodium salt

Molecular weight:

404,81 g/mol

Thimerosal, which is obtained from Ethylmercury-chloride, hydrous NaOH and Thiosalicylic acid is used among other things in liquid medical preparations to keep them sterilised. Moreover it is used in disinfecting irrigations, as a preservative in vaccines, drops and ointments for eyes, in blood plasmas as well as in veterinary medicine and for antiseptic surgical dressing.


Securing the pharmaceutical future

About the product

Thimerosal has been widely used as a bacteriostatic agent and preservative in several different pharmaceutical formulations. For example in ophthalmic liquid preparations, topical antifungal formulations and in a vast range of veterinary products. Furthermore, it is well established as an anti-infective, antimicrobial and antifungal agent and is the preservative most widely used in vaccines due to its efficiency, effectiveness and low cost.

Thimerosal produced by Gihon Laboratorios is meeting all the Pharmacopoeias and specifications required for such a complex chemical compound (USP, BP, EP).

Product Specifications:


Formula: C9H9HgNaO2S

CAS Nr.: [54-64-8]

Molecular Weight: 404.81

H.S. (Harmonized System-Custom Tariff): 2852.10

Available documentation:


UN-Boxes with 5 jars of 1 kg net weight each.

About the manufacturer

Thimerosal is the main product of direct manufacturing from the Argentinian company Gihon Laboratorios Químicos s.r.l., which is located  in the Industrial Park in Mar del Plata, Province of Buenos Aires. Gihon is specialized in the production of chemicals involving complex organic synthesis. Within their facilities that have been designed in compliance with the current international regulations they work according to GMP (Good Manufacture Practice) and GLP (Good Laboratory Practice).

In 2016 Gihon received a grant from a well-known non-profit organization to build a 12 month stockpile and secure the supply with Thimerosal. This stockpile is to be used in the case of an unexpected change in policy or unavailability of Thimerosal, ensuring the continuous production and preservation of human and veterinary vaccines.

About the distribution

Since 1994 Gihon Laboratorios Químicos s.r.l. and Cfm Oskar Tropitzsch GmbH have been in a close partnership. Cfm as the worldwide sales agent – besides South America – for the product Thimerosal supports the goal of preserving a stockpile by keeping half of the required supply in its warehouses in Germany. By splitting the stockpile storage, an additional safeguard is put in place and a fast supply in case of emergency is guaranteed.

Cfm Oskar Tropitzsch GmbH is proud to be part of a project securing the worldwide vaccination.

We are looking forward to hearing from you with your inquiries for Thimerosal.

Inform about
Thimerosal USP/BP/EP


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