Agent Name

n-Pentanoic acid

Alternative Name

n-Valeric acid

CAS Number

109-52-4

Formula

C5-H10-O2

Major Category

Other Classes

Synonyms

n-Valeric acid; 1-Butanecarboxylic acid; Butanecarboxylic acid; Kyselina valerova [Czech]; Pentanoic acid; Propylacetic acid; VALERIC ACID, N-; Valerianic acid; Valeric acid; Valeric acid, normal; [ChemIDplus] UN3265

Category

Organic Acids

Description

Colorless liquid with an unpleasant odor; [Merck Index]

Sources/Uses

Used as a sugarcane ripening agent and intermediate; [HSDB] Used in the manufacture of solvents, rodenticides, and fungicides; Present in a variety of plants, fruits, dairy, and meat products; [CHEMINFO]

Comments

A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; [ICSC] Emergency treatment: "Acids"; [HSDB] Causes altered sleep time and seizures in intravenous, lethal-dose studies of mice; [RTECS] Safe when used as a flavoring agent in food; [JECFA] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline]

Exposure Assessment
Vapor Pressure

0.19 mm Hg

Odor Threshold Low

0.00062 ppm

Odor Threshold High

0.0008 ppm

Lethal Concentration

LC50 (mice) = 2,050 mg/m3/4h

Explanatory Notes

Flash point = 96 deg C; [Hawley] Odor threshold (low) and (100% recognition) from CHEMINFO; The Guide in the Emergency Response Guidebook is for "Corrosive liquid, acidic, organic, n.o.s."

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: