D-Xylulose aqueous solution is a ready-to-use pentose ketose preparation for biochemical and metabolic research. The compound is registered under CAS number 551-84-8, has the empirical formula C₅H₁₀O₅ and a molar mass of 150,13 g/mol. Physicochemical data include a density of 1,516 g/cm³ and a boiling point of 469 °C. This variant is supplied as an aqueous solution D-Xylulose participates in pathways linked to pentose phosphate metabolism, xylose isomerisation and microbial carbon utilisation. Laboratories investigating carbohydrate kinases, isomerases or bioconversion of pentoses can employ the solution as a defined substrate or reference material. The aqueous format reduces weighing steps and supports direct dilution into assay buffers. Offered by manufacturer Carl ROTH within the biochemicals range, the product combines transparent identity data with practical packaging for research workflows. Consistent specification of molar mass, density and CAS number assists documentation, method transfer and quality-controlled use in glycoscience and microbial metabolism studies. Key features Colour: colorless Form: liquid Purity (HPLC): ≥99 % Concentration: batch-specific value ¹³C-NMR Spectrum: complies CAS number: 551-84-8 Pack sizes: 50 mg, 100 mg, 250 mg Empirical formula: C₅H₁₀O₅ Molar mass: 150,13 g/mol Density: 1,516 g/cm³ Technical Information Sheet: Safety Data Sheet: