Wholesale Price 2,5-Thiophenedicarboxylic acid – O-methoxybenzaldehyde – Subang

Structural Formula

Chinese name: o-methoxybenzaldehyde

Another name: o-methoxybenzaldehyde; 2-methoxybenzaldehyde; 2-anisaldehyde; o-anisaldehyde; o-methoxybenzaldehyde; salicaldehyde methyl ether; o-anisaldehyde; salicylaldehyde methyl ether

Molecular formula: C8H8O2

Molecular weight: 136.15

Numbering System

CAS Number: 135-02-4

EINECS: 205-171-7

HS code: 29124900

Technical Parameters

Appearance: colorless prismatic crystal

Purity: ≥98.0%

Melting point: 39°C

Boiling point: 238°C, 70-75°C/0.2kPa

Relative density: 1.1326 (20/4°C)

Refractive index: 1.5597

Flash point: 117°C

Solubility: soluble in alcohol, ether, benzene, insoluble in water

Production Method

From salicylaldehyde by methylation reaction with dimethyl sulfate. Mix 3kg of sodium hydroxide into a 30% aqueous solution, add 12.2kg of salicylaldehyde and 80L of water under stirring, and heat to boiling. Slowly add 12.9kg of dimethyl sulfate, keep the reaction solution refluxed for about 3h after adding, continue to reflux for 2-3h following Chemicalbook, cool the oil layer, wash with 5% sodium hydroxide solution, and then wash with water to pH 8, add Anhydrous potassium carbonate is dried. After filtering out the desiccant, distillation under reduced pressure, collecting the distillate at 120°C (2.0kPa), which is o-methoxybenzaldehyde. The methylation reaction can also be carried out in the solvent toluene, with a yield of 60%.

Purpose

Methoxybenzaldehyde is an intermediate in organic synthesis, used in the production of spices and medicines. The o-methoxybenformaldehyde can be used in production. O-Methoxybenzaldehyde can be used to produce the adrenergic drug Chuankening.