Agent Name

n-Butyl nitrite

CAS Number

544-16-1

Formula

C4-H9-N-O2

Major Category

Nitrogen Compounds

Synonyms

Butyl nitrite; Nitrous acid, n-butyl ester; Nitrous acid, butyl ester; [ChemIDplus] UN2351

Category

Nitrates and Nitrites

Description

Oily liquid; [Merck Index]

Sources/Uses

Used to make rare earth azides; [Merck Index]

Comments

Vasodilator effects similar to amyl nitrate; [Merck Index] An irritant; May cause lacrimation; Can induce methemoglobinemia; [MSDSonline]

Exposure Assessment
Vapor Pressure

81.3 mm Hg

Lethal Concentration

LC50 (rat) = 420 ppm/4h

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Butyl nitrates."

Adverse Effects
Lacrimator

Yes

Methemoglobinemia

Methemoglobinemia, Secondary

Links to Other NLM Databases
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