kwas fyzodalowy, physodalic acid, Physodalsäure

Rf values in standard eluents systems: A: 10 · B: 31 · B': 33 · C: 19 · G: 46

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

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

Spot tests: K pale brown, yellow-red · C — · P orange, red