For further processing only. Others MES free acid MES, free acid 3.2.15.1.4.3 crystalline powder 04808177103 MES, free acid MES, free acid 07613336132562 Reagents, kits custom fill Not Available CustomBiotech product. Please contact your local representative. Will be supplied as "4-Morpholineethane Sulfonic Acid (Mes)". Unit of measure is "kg". Buffer for a variety of diagnostic tests, such as glucose test. en Use MES as a buffer in reagents that require a pH of approximately 6. en Appearance: White, crystalline powder Solubility: Clear, colorless solution in water (20 mg/mL) Identity (NIR): Corresponds to reference PVS/IgI screening: ≤1 ppm MES (alkalimetric, based on dry weight): ≥98.0% Water (K. Fischer): ≤10.0% Na (flame photometric): ≤20 ppm Stability: At +15 to +25°C within specification range for 24 months. en