Papyracillic acid AAntibioticDioxaspirolactone antibiotic. Exists in an equilibrium of diastereomers.Product SpecificationFormula: C11H14O5 MW: 226.2 Source: Isolated from Lachnum papyraceum and a Microsphaeropsis sp. CAS: 179308-49-7Purity: ≥98% (HPLC) Identity: Identity determined by 1H-NMR. Appearance: Off-white to beige solid. Solubility: Soluble in dichloromethane or chloroform. Long Term Storage: -20°C