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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 235785Generated: October 31, 2026

Anthranilic Acid → 5-Sulfoanthranilic acid

https://huagongshe.com/reaction/235785

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnthranilic AcidHCID 227—
ReactantSulfuric AcidHCID 1118—
ReactantSodium CarbonateHCID 10340—
Product5-Sulfoanthranilic acidHCID 19151—
ProductDisodiumHCID 141233—

Reaction Steps

Anthranilic acid is heated with concentrated sulfuric acid to 180° C. for 1 hour, after which the acid is neutralized with sodium carbonate solution. Evaporation of the water yields the disodium salt of the title compound. Structural verification was obtained by carbon magnetic resonance, proton magnetic resonance and infra-red analysis.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04642240
Source datasetuspto-grants-1987_02
ORD IDord-95897cff3bc3471fbd44c4e1fb106fac
Source noteuspto-grants-1987_02