Butyl nitrite

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Butyl nitrite
Butyl nitrite 3d structure.png
Systematic (IUPAC) name
Clinical data
Legal status
CAS number 544-16-1 YesY
ATC code None
PubChem CID 10996
ChemSpider 10530 YesY
Chemical data
Formula C4H9NO2 
Mol. mass 103.12
 YesY (what is this?)  (verify)

Butyl nitrite is an alkyl nitrite made from n-butanol. Butyl nitrite is used recreationally as poppers.


Synonyms include 1-butyl nitrite and nitrous acid, butyl ester.

It can be prepared by reacting nitrous acid (generated in situ by reacting a metal nitrite with a mineral acid) with n-butanol.

Butyl nitrite is highly flammable.


Butyl nitrite is one of the compounds used as poppers, an inhalant drug that induces a brief euphoria.