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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 376016Generated: October 29, 2026

Maleic Anhydride → 2,5-Dioxo-2,5-dihydrofuran-3-sulfonic acid

https://huagongshe.com/reaction/376016

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleic AnhydrideHCID 7923—
ReactantSulfur trioxideHCID 24682—
Product2,5-Dioxo-2,5-dihydrofuran-3-sulfonic acidHCID 12479880—

Reaction Steps

Sulfur trioxide reacts with maleic anhydride to afford sulfo maleic anhydride (SMA) according to the following reaction scheme: ##STR4##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05488146
Source datasetuspto-grants-1996_01
ORD IDord-ff32797b6bbb4f13aa63dd28623f438e
Source noteuspto-grants-1996_01