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 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 7510 Y

PubChem CID

* 7798

UNII |

* A88LE742VX Y

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 | [1]
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).

Y verify (what is YN ?)
Infobox references

Tracking categories (test):

* SizeSet

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

1. ↑ "MSDS Information". Butyric Anhydride MSDS. http://www.coleparmer.com/catalog/Msds/96914.htm. Retrieved 2011-01-07.

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*[CID]: Compound ID