α,α-D-Trehalose, anhydrous

α,α-D-Trehalose, anhydrous is a non-reducing disaccharide biochemical identified by CAS number 99-20-7 and the empirical formula C₁₂H₂₂O₁₁. With a molar mass of 342,3 g/mol, this anhydrous α,α-linked D-trehalose grade provides a defined carbohydrate for laboratory use where moisture-free material and clear molecular identity are required. It is offered in a 1 kg pack size, suited to higher-throughput preparation, stock formulation, and sustained experimental demand. Research groups working with trehalose in biochemical, formulation, or analytical settings can use the stated CAS number, formula, and molar mass for concentration calculations, documentation, and literature alignment. The product comes from manufacturer Carl ROTH within a biochemicals assortment and is presented as the anhydrous form, supporting applications that specify dry trehalose rather than hydrated grades. The 1 kg unit quantity balances convenient bulk handling with research and process-development needs, while the anhydrous designation helps users select the appropriate solid form for their protocols. Consistent registry and formula data underpin reproducible weighing, solution make-up, and reporting across routine laboratory operations.

This article is part of Carbohydrates & sugars, in Biochemicals & reagents.

Key features

• Colour: white to off-white
• Form: powder to crystalline powder
• Purity (HPLC): ≥98 %
• Specific rotation [α]20D (c=10 in H2O): 194-200 °
• Ash content: ≤0.1 %
• Water content (KF): ≤1 %
• ¹H-NMR Spectrum: complies
• CAS number: 99-20-7
• Pack sizes: 1 kg, 2 kg, 5 kg
• Empirical formula: C₁₂H₂₂O₁₁
• Molar mass: 342,3 g/mol
• UNSPSC: 12352200
• Technical Information Sheet:
• Safety Data Sheet: