1-Chloronaphthalene

Also known as: 1-Naphthyl chloride, α-Chloronaphthalene, alpha-Chloronaphthalene, 1-Chloro naphthalene, PCN-1, Monochloronaphthalene, Naphthalene, 1-chloro-

1-Chloronaphthalene (CAS 90-13-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H7Cl and a molecular weight of 162.616 g/mol. Key properties include a melting point of −20 °C(lit.), a boiling point of 260.3±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 121.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 90-13-1
Jingsj CID: J-32120-8
Molecular Formula: C₁₀H₇Cl
Molecular Weight: 162.616 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	−20 °C(lit.)
Boiling Point	260.3±9.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	121.1±0.0 °C
Exact Mass	162.023621
LogP	4.04
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.643
Additional Property	insoluble.

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

H302 — Harmful if swallowed
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation
H400 — Very toxic to aquatic life

Frequently Asked Questions

What is the CAS number of 1-Chloronaphthalene?

The CAS number of 1-Chloronaphthalene is 90-13-1.

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

1-Chloronaphthalene has molecular formula C10H7Cl and molecular weight 162.616 g/mol.

Is 1-Chloronaphthalene hazardous?

1-Chloronaphthalene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

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

For 1-Chloronaphthalene, Upstream Products: Naphthalene, 1-Bromonaphthalene, Benzene,1,2-diethynyl-(9CI); Downstream Products: 4-Chloro-1-naphthoic acid, 2-Fluoronaphthalene, 1-Fluoronaphthalene.

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-Chloronaphthalene (CAS 90-13-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32120-8 (accessed 2026-11-06).

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