Succinic anhydride

Succinic anhydride

Names
IUPAC name Oxolane-2,5-dione [1]
Other names Succinic acid anhydride Succinyl oxide Dihydro-2,5-furandione
Identifiers
CAS Registry Number	108-30-5 Y
ChEBI	CHEBI:36595 Y
ChemSpider	7634 Y
InChI InChI=1S/C4H4O3/c5-3-1-2-4(6)7-3/h1-2H2 Y Key: RINCXYDBBGOEEQ-UHFFFAOYSA-N Y InChI=1/C4H4O3/c5-3-1-2-4(6)7-3/h1-2H2 Key: RINCXYDBBGOEEQ-UHFFFAOYAN
Jmol-3D images	Image
KEGG	C19524 N
PubChem	7922
SMILES O=C1OC(=O)CC1
Properties
Molecular formula	C4H4O3
Molar mass	100.07 g·mol−1
Appearance	Colorless crystalline needles[2]
Density	1.23 g/cm3[2]
Melting point	119 to 120 °C (246 to 248 °F; 392 to 393 K)[3]
Boiling point	261 °C (502 °F; 534 K)[2]
Solubility in water	Decomposes
Hazards
Flash point	147 °C (297 °F; 420 K)[4]
LD50 (Median lethal dose)	1510 mg/kg (oral, rat)[4]
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
N verify (what is: Y/N?)
Infobox references

Succinic anhydride, also called dihydro-2,5-furandione, is an organic compound with the molecular formula C₄H₄O₃. This colorless solid is the acid anhydride of succinic acid.^[5]

Applications

Alkyl succinic anhydride (ASA) is used as a sizing agent or wet strength additive in paper production.

See also

• Maleic anhydride
• Maleic acid

References