(+)-Usnic acid is a phytochemical chromatography standard supplied in ROTICHROM® CHR grade for analytical and research applications. The compound carries CAS number 7562-61-0 and EG nr. 231-456-0, with empirical formula C₁₈H₁₆O₇, molar mass 344,31 g/mol, and density 1,54 g/cm³. Packaged as 10 g in plastic, this quantity suits repeated preparation of reference solutions, system suitability checks, and comparative studies of lichen-derived secondary metabolites. Offered by manufacturer Carl ROTH within the standards-for-chromatography range, (+)-usnic acid supports phytochemical analysis, natural-product characterisation, and method work where a defined enantiomeric form is specified. Clear identity data—CAS, EG number, formula, and molar mass—facilitate documentation, stoichiometric calculations, and inventory control in analytical laboratories. The plastic pack format is practical for routine bench handling while preserving the material for ongoing chromatographic and spectroscopic investigations of usnic acid and related structures. Key features CAS number: 7562-61-0 Pack size: 10 g plastic EG nr.: 231-456-0 Empirical formula: C₁₈H₁₆O₇ Molar mass: 344,31 g/mol Technical Information Sheet: Safety Data Sheet:
