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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1112606Generated: October 26, 2026

Sulfuric Acid → 5-Amino-2-methoxybenzoic acid

https://huagongshe.com/reaction/1112606

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant5-Aminosalicylic AcidHCID 4075—
ReactantSodium CarbonateHCID 10340—
SolventMethanolHCID 887—
Product5-Amino-2-methoxybenzoic acidHCID 13549244—

Reaction Steps

A solution of 10 g of 5-aminosalicylic acid, 100 ml of methanol and 5 ml of sulfuric acid are refluxed overnight. The reaction mixture is cooled, basified with sodium carbonate and the methanol is evaporated. The resulting solid is washed with water and dried giving 4.0 g of methyl-5-aminosalicylic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04123455
Source datasetuspto-grants-1978_10
ORD IDord-30c47ab8d59b413b83fc76d9efefb709
Source noteuspto-grants-1978_10