Fisher Scientific UK Ltd. Bishop Meadow Road, Loughborough, LE11 5RG Certificate of Analysis Thermo Fisher Scientific's Quality System has been found to conform to Quality Management System Standard ISO9001:2015 by SAI Global Certificate Number. QMS42099 Catalogue Number P/1038 Lot Number 2354903 Description 1-Pentane sulfonic acid, sodium salt , Ion pair chromatography, HPLC Quality Test / Release Date 28-APR-23 Expiry Phrase Use within 5 yrs of opening Country of Origin India Result Name Units Specification Test Value Appearance White Amorphous powder White Amorphous powder Absorbance @ 200 nm (0.25M aq. soln.) A.U. <= 0.1 0.035 Absorbance @ 210 nm (0.25M aq. soln.) A.U. <= 0.05 0.014 Absorbance @ 220 nm (0.25M aq. soln.) A.U. <= 0.04 0.008 Absorbance @ 230 nm (0.25M aq. soln.) A.U. <= 0.03 0.006 Absorbance @ 240 nm (0.25M aq. soln.) A.U. <= 0.02 0.005 Absorbance @ 250 nm (0.25M aq. soln.) A.U. <= 0.02 0.005 Absorbance @ 260 nm (0.25M aq. soln.) A.U. <= 0.02 0.006 Assay % >= 98 98.20 Certified By Mrs Paula Faulkes Saturday 20th of December 2025 Quality Assurance Manager. Products are processed under ISO 9001:2015 quality management systems and samples are tested for conformance to the noted specifications. Certain data may have been supplied by third parties. We disclaim the implied warranties of merchantability and fitness for a particular purpose, and the accuracy of third-party data or information associated with the product. Products are for research use or further manufacturing. Products are not for direct administration to humans or animals. It is the responsibility of the final formulator or end user to determine suitability, and to qualify and/or validate each product for its intended use.