Isobutyl nitrite

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Isobutyl nitrite[1]
Isobutyl nitrite Structural Formula V1.svg
Isobutyl nitrite 3d structure.png
Preferred IUPAC name
2-Methylpropyl nitrite
Other names
Isobutyl nitrite
  • 542-56-3 ☑Y
3D model (JSmol)
  • Interactive image
  • CHEBI:46643 ☑Y
  • 10493 ☑Y
ECHA InfoCard 100.008.018
PubChem CID
  • 10958
Molar mass 103.11976
Appearance Colorless liquid
Odor Almond-like[2]
Density 0.87 g/mL
Boiling point 67 °C (153 °F; 340 K)
Slightly soluble
Main hazards Highly flammable
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

Isobutyl nitrite, C4H9NO2, is an alkyl nitrite, an ester of isobutanol and nitrous acid. Its chemical structure is (CH3)2CH-CH2-ONO.

Isobutyl nitrite is a pungent colorless liquid. It acts as a vasodilator, and is used as an inhalant recreational drug, poppers.


Isobutyl nitrite is one of the compounds used as poppers, an inhalant drug that induces a brief euphoria. Also, it is used as part of the antidote package for cyanide poisoning.[medical citation needed]


May cause headaches, dizziness and fainting. Isobutyl nitrite is poisonous to people with glucose-6-phosphate dehydrogenase deficiency.[medical citation needed]


  1. ^ Merck Index, 11th Edition, 5032.
  2. ^ CDC - NIOSH Pocket Guide to Chemical Hazards

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