Mauthner, F. et al. published their research in Journal fuer Praktische Chemie (Leipzig) in 1927 | CAS: 57179-35-8

3-Hydroxy-5-methoxybenzaldehyde (cas: 57179-35-8) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.COA of Formula: C8H8O3

Synthesis of a new resorcylaldehyde was written by Mauthner, F.. And the article was included in Journal fuer Praktische Chemie (Leipzig) in 1927.COA of Formula: C8H8O3 This article mentions the following:

3,5-(HO)2C6H4CO2Me (10 g.) and 2.4 g. NaOH in 25 cc. H2O, shaken with 6 cc. Me2SO4, made alk. with 50 cc. 10% NaOH and extracted with Et2O, give after acidifying, 3.1 g. 3-hydroxy-5-methoxy-1-benzoic acid, m. 202-3°; carbomethoxy, derivative, m. 145-6°, whose chloride m. 57-8°; reduction with Pd-BaSO4 and saponification gives 3-hydroxy-5-methoxy-1-benzaldehyde, m. 130-1° (p-nitrophenylhydrazone, red, m. 221-2°; semicarbazone, m. 197-8); with CH2(CO2H)2 and piperidine it gives 3-hydroxy-5-methoxy-1-cinnamic acid, m. 198-9°. In the experiment, the researchers used many compounds, for example, 3-Hydroxy-5-methoxybenzaldehyde (cas: 57179-35-8COA of Formula: C8H8O3).

3-Hydroxy-5-methoxybenzaldehyde (cas: 57179-35-8) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.COA of Formula: C8H8O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem