Agent Name

beta-Naphthylamine

Alternative Name

2-Naphthylamine

CAS Number

91-59-8

Formula

C10-H9-N

Major Category

Nitrogen Compounds

Synonyms

2-Aminonaftalen; 2-Aminonaftalen [Czech]; 2-Aminonaphthalene; 2-Naftylamin; 2-Naftylamin [Czech]; 2-Naftylamine; 2-Naftylamine [Dutch]; 2-Naphthalamine; 2-Naphthalenamine; 2-Naphthylamin; 2-Naphthylamin [German]; 2-Naphthylamine; 2-Naphthylamine mustard; 6-Naphthylamine; Fast Scarlet Base B; beta-Naftalamin; beta-Naftalamin [Czech]; beta-Naftilamina; beta-Naftilamina [Italian]; beta-Naftylamin; beta-Naftylamin [Czech]; beta-Naftyloamina; beta-Naftyloamina [Polish]; beta-Naphthylamin; beta-Naphthylamin [German]; beta-Naphthylamine; [ChemIDplus] UN1650

Category

Naphthylamines

Description

Odorless, white to red crystals with a faint, aromatic odor; Note: Darkens in air to a reddish-purple color; [NIOSH]

Sources/Uses

Rarely used today; used in the past in research and in the production of dyes and rubber; [ACGIH]

Comments

A bladder carcinogen regulated by OSHA; see 29 CFR 1910.1003; Listed in the table "Examples of Industrial Chemicals for Which Methemoglobin Formation is NOT the Principal Cause of Toxicity"; [ACGIH] See "alpha-Naphthylamine."

Restricted

Not imported or used in the U.S. since 1975. [ACGIH]

Exposure Assessment
Vapor Pressure

0.000256 mm Hg

Odor Threshold Low

1.4 ppm

Odor Threshold High

1.9 ppm

Explanatory Notes

Carcinogen--No TLV; Flash point = 157 deg C; Recognition odor threshold from HSDB;

Half Life

No reports found; [TDR, p. 924]

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Human Carcinogen

ACGIH Carcinogen

Confirmed Human

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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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: