Annaraj, B. et al. published their research in Analytical Methods in 2014 | CAS: 65-22-5

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.SDS of cas: 65-22-5

Water-soluble pyridine-based colorimetric chemosensor for naked eye detection of silver ions: Design, synthesis, spectral and theoretical investigation was written by Annaraj, B.;Neelakantan, M. A.. And the article was included in Analytical Methods in 2014.SDS of cas: 65-22-5 The following contents are mentioned in the article:

A water soluble pyridine containing a Schiff base as chemosensor was designed and then synthesized. The chemosensor (L) was synthesized by reacting pyridoxal and 2-aminoethanol and then comprehensively characterized using elemental anal., spectroscopic methods (IR, UV-visible, NMR (1H-NMR and 13C-NMR) spectroscopy), electrospray ionization mass spectroscopy, and single crystal X-ray crystallog. The designed compound showed excellent specificity and sensitivity (detection limit = 4.18 × 10-6 M) towards Ag+ ions in preference to other interfering cations (Ca2+, Co2+, Cu2+, Fe2+, Fe3+, Hg2+, VO2+, K+, Li+, Mn2+, Na+, Ni2+, Pb2+ and Zn2+) in aqueous solution The (L) showed a selective chromogenic behavior towards Ag+ ions by changing the color of the solution from light yellow to red, a change which can be detected with the naked eye. A simple and cost effective test kit was prepared for the detection of silver ion in water samples. Time-dependent d. functional theory calculations were carried out to help understand the sensing mechanism. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5SDS of cas: 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.SDS of cas: 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts