What is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (1:1) (CAS: 65-22-5)?

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (1:1) is a chemical compound with the CAS number 65-22-5. It features a pyridine ring with hydroxyl and hydroxymethyl groups, along with a methyl substituent. The hydrochloride salt form enhances its solubility in water, making it a versatile intermediate in organic synthesis. It is a white solid with a characteristic odor, commonly used in research and industrial applications.