1-Naphthylamine

Also known as: 1-Aminonaphthalene, α-Naphthylamine, Naphthalen-1-amine, Naphthalidine, Naphthylamine, 1-Naphthalenamine, Aminogen I, C.I. Azoic Diazo Component 114

1-Naphthylamine (CAS 134-32-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C10H9N and a molecular weight of 143.185 g/mol. Key properties include a melting point of 47-50 °C(lit.), a boiling point of 301.0±0.0 °C at 760 mmHg, a density of 1.114 and a flash point of 152.1±14.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H310 and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 134-32-7
Jingsj CID: J-1498302-9
Molecular Formula: C₁₀H₉N
Molecular Weight: 143.185 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	47-50 °C(lit.)
Boiling Point	301.0±0.0 °C at 760 mmHg
Density	1.114
Flash Point	152.1±14.6 °C
Exact Mass	143.073502
PSA	26.02000
LogP	2.17
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.694
Additional Property	Insoluble. 0.1698 g/100 mL

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger

H302 — Harmful if swallowed
H310
H350 — May cause cancer
H411 — Toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of 1-Naphthylamine?

The CAS number of 1-Naphthylamine is 134-32-7.

What are the molecular formula and molecular weight of 1-Naphthylamine?

1-Naphthylamine has molecular formula C10H9N and molecular weight 143.185 g/mol.

Is 1-Naphthylamine hazardous?

1-Naphthylamine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H310; H350 — May cause cancer.

What are the upstream and downstream products of 1-Naphthylamine?

For 1-Naphthylamine, Upstream Products: 1-Bromonaphthalene, 1-Naphthaleneboronic acid, 1-Nitronaphthalene; Downstream Products: 4-Nitro-1-naphthol, 1-naphthyl isothiocyanate, 2(1H)-Pyridone.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "1-Naphthylamine (CAS 134-32-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498302-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.