kwas fyzodowy, physodic acid, Physodsäure

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TLC, spot tests

class: β-Orcinol Depsides
Rf values in standard eluents systems: A: 25 · B: 35 · B': 35 · C: 18

Visibility: in natural light: — · in UV-C (254nm): +

Visibility after H2SO4 spraying and 10 min in 110°C charring:
in natural light: pale orange
in UV-A (ca.360nm): purple

Spot tests: K — · C — · KC pale red · P —