Butyric anhydride

Butyric anhydride
Names
	Preferred IUPAC name Butanoic anhydride
	Other names Butyric anhydride; Butanoyl butanoate; Butanoic acid anhydride; Butyric acid anhydride; Butyryl oxide
Identifiers
CAS Number	106-31-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	7510 ;
ECHA InfoCard	100.003.077
PubChem CID	7798;
UNII	A88LE742VX ;
CompTox Dashboard (EPA)	DTXSID8026729 ;
	InChI InChI=1S/C8H14O3/c1-3-5-7(9)11-8(10)6-4-2/h3-6H2,1-2H3 Key: YHASWHZGWUONAO-UHFFFAOYSA-N;
	SMILES CCCC(OC(CCC)=O)=O;
Properties
Chemical formula	C8H14O3
Molar mass	158.197 g·mol−1
Appearance	Clear liquid
Density	.967 g/cm3
Melting point	−75 °C (−103 °F; 198 K)
Boiling point	198 °C (388 °F; 471 K)
Refractive index (nD)	1.413
Hazards
Safety data sheet
Related compounds
Related acid anhydrides	Acetic anhydride; Propionic anhydride; Valeric anhydride
Related compounds	Butyric acid; Butyryl chloride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Butyric anhydride or butanoic anhydride is the chemical compound with the formula (CH₃CH₂CH₂CO)₂O. The molecule can be described as a condensation of two molecules of butyric acid with elimination of one water molecule (hence its name).

Butyric anhydride is a clear colorless liquid that smells strongly of butyric acid, which is formed by its reaction to moisture in the air.

Safety

Butyric anhydride is a combustible, corrosive liquid. It is considered water sensitive.[1]

References

"MSDS Information". Butyric Anhydride MSDS. Retrieved 2011-01-07.

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[1] "MSDS Information". Butyric Anhydride MSDS. Retrieved 2011-01-07.