Description General description Thimerosal belongs to the group of alkyl mercury compounds, widely used as a preservative in vaccine formulations.[2][3] Application These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements. Thimerosal may be used as a pharmaceutical reference standard for the quantification of the analyte in ophthalmic solutions using spectrophotometric technique.[1] 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. Analysis Note These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available. Other Notes This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis. Footnote To see an example of a Certificate of Analysis for this material enter LRAA6959 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.