Succinic anhydride

Succinic anhydride
	IUPAC name oxolane-2,5-dione [1]
	Other names Succinic acid anhydride; Succinyl oxide; Dihydro-2,5-furandione
Identifiers
CAS number	108-30-5
PubChem	7922
ChemSpider	7634
KEGG	C19524
ChEBI	CHEBI:36595
Jmol-3D images	Image 1
	SMILES O=C1OC(=O)CC1 ;
	InChI InChI=1S/C4H4O3/c5-3-1-2-4(6)7-3/h1-2H2 ; Key: RINCXYDBBGOEEQ-UHFFFAOYSA-N InChI=1/C4H4O3/c5-3-1-2-4(6)7-3/h1-2H2; Key: RINCXYDBBGOEEQ-UHFFFAOYAN ;
Properties
Molecular formula	C4H4O3
Molar mass	100.07 g mol−1
Appearance	colourless crystalline needles
Density	4,16 g·cm−3
Melting point	119–120 °C
Boiling point	261 °C
	(verify) (what is: /?); Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
	Infobox references

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Succinic anhydride, also called dihydro-2,5-furandione, is an organic compound with the molecular formula C₄H₄O₃. It is the acid anhydride of succinic acid.

[edit] Applications

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

^ ^a ^b ^c Record of CAS RN 108-30-5 in the GESTIS Substance Database from the IFA
^ Mclean, A.; Adams, R.: Succinic-α-d2,α'-d2, Acid and Its Derivatives in J. Am. Chem. Soc. 58 (1936) 804–810. doi:10.1021/ja01296a038

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Succinic anhydride

IUPAC name oxolane-2,5-dione [1]
Other names Succinic acid anhydride Succinyl oxide Dihydro-2,5-furandione
Identifiers
CAS number	108-30-5^Y
PubChem	7922
ChemSpider	7634^Y
KEGG	C19524^N
ChEBI	CHEBI:36595^Y
Jmol-3D images	Image 1
SMILES O=C1OC(=O)CC1
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
Properties
Molecular formula	C₄H₄O₃
Molar mass	100.07 g mol⁻¹
Appearance	colourless crystalline needles^[1]
Density	4,16 g·cm⁻³^[1]
Melting point	119–120 °C^[2]
Boiling point	261 °C^[1]
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references