Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2259162Generated: November 1, 2026

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

https://huagongshe.com/reaction/2259162

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: ##STR3##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05472642
Source datasetuspto-grants-1995_12
ORD IDord-093bedc92e06456bb5b8cbb14ed7e13c
Source noteuspto-grants-1995_12