p-Hydroxybenzaldehyde Molecular Formula C7H6O2 Molecular Weight 122.12 CAS Registry Number 123-08-0 EINECS 204-599-1 Properties Melting point 114-118 ºC Water solubility 13 g/L (30 ºC) Specification: Appearance: Light yellow or light red crystal Content: 99% min Melting point: 114.5°C min Water content: 0.5% Excellent: Appearance: white crystal Content: 99.5% min Melting point: 115.5°C min Water content: 0.3%