Pyridoxal . hydrochlorideProduct SpecificationAlternative Name: 3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinecarboxaldehyde . hydrochloride Formula: C8H9NO3 . HCl MW: 167.1 . 36.5 CAS: 65-22-5 MI: 14: 7978 Purity: ≥98% Appearance: White to yellow powder.Solubility: Soluble in water or 96% ethanol. Long Term Storage: +4°C Use/Stability: Photolabile in solutions; particularly in alkaline solutions. Handling: Protect from light.