PHL89818

(+)-Usnic acid

phyproof^® Reference Substance

• Synonym(s): 2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3(2H,9bH)-dione
• Empirical Formula (Hill Notation): C₁₈H₁₆O₇
• CAS Number: 7562-61-0
• Molecular Weight: 344.32
• Beilstein: 96698
• MDL number: MFCD00191041
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: primary reference standard
• product line: phyproof^® Reference Substance
• Assay: ≥98.0% (HPLC)
• manufacturer/tradename: PhytoLab
• mp: 201-203 °C (lit.)
• application(s): food and beverages
• format: neat
• SMILES string: C[C@](C1=C(O)C(C)=C(O)C(C(C)=O)=C1O2)(C(C3C(C)=O)=O)C2=CC3=O
• InChI: 1S/C18H16O7/c1-6-14(22)12(8(3)20)16-13(15(6)23)18(4)10(25-16)5-9(21)11(7(2)19)17(18)24/h5,22-24H,1-4H3/t18-/m1/s1
• InChI key: ICTZCAHDGHPRQR-GOSISDBHSA-N

Description

General description

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG

Legal Information

phyproof is a registered trademark of PhytoLab GmbH & Co. KG

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302
• Precautionary Statements: P301 + P312 + P330
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable