# C4H4O3

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Related molecular formulas C4H6O3 C3H2O3 C4H4O3 C5H6O3 C4H2O3 C4H4O2 C4H4O4

The molecular formula **C4H4O3** (molar mass: 100.07 g/mol) may refer to:

- [5-Hydroxy-2(5*H*)-furanone](/source/5-Hydroxy-2(5H)-furanone)

- [Succinic anhydride](/source/Succinic_anhydride)

- [Tetronic acid](/source/Tetronic_acid)

Index of chemical compounds with the same molecular formula

This [set index](https://en.wikipedia.org/wiki/Wikipedia:SETINDEX) page lists chemical structure articles associated with the [same](/source/Isomer) [molecular formula](/source/Molecular_formula).
If an [internal link](https://en.wikipedia.org/w/index.php?title=Special:WhatLinksHere/C4H4O3&namespace=0) led you here, you may wish to change the link to point directly to the intended article.

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Adapted from the Wikipedia article [C4H4O3](https://en.wikipedia.org/wiki/C4H4O3) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/C4H4O3?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.