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(2H8)Naphthalene

Also known as: (H)Naphthalene, 1,2,3,4,5,6,7,8-octadeuterionaphthalene, EINECS 214-552-7, MFCD00001743, NAPHTHALENE-D8, NAPHTHALENE-D8, 250MG, NEAT, NAPHTHALENE-D8, 99 ATOM % D, Naphtalene-d8,99 atom % D, Naphthalene-d, Naphthalene-d8, OCTADEUTERONAPHTHALENE, Perdeuteronaphthalene, [2H8]Naphthalene, naphthalene-d8(deuteratednaphthalene)

(2H8)Naphthalene (CAS 1146-65-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10D8 and a molecular weight of 136.220 g/mol. Key properties include a melting point of 80-82ºC(lit.), a boiling point of 221.5±7.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 78.9±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1146-65-2
Jingsj CID
J-22960-9
Molecular Formula
C10D8
Molecular Weight
136.220 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Melting Point80-82ºC(lit.)
Boiling Point221.5±7.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point78.9±0.0 °C
Exact Mass136.112808
LogP3.45
Additional Property4.4 (vs air)
Vapor Pressure0.2±0.2 mmHg at 25°C
Refractive Index1.632

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H336 — May cause drowsiness or dizziness
  • H351 — Suspected of causing cancer
  • H373 — May cause damage to organs through prolonged exposure

Frequently Asked Questions

What is the CAS number of (2H8)Naphthalene?

The CAS number of (2H8)Naphthalene is 1146-65-2.

What are the molecular formula and molecular weight of (2H8)Naphthalene?

(2H8)Naphthalene has molecular formula C10D8 and molecular weight 136.220 g/mol.

Is (2H8)Naphthalene hazardous?

(2H8)Naphthalene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of (2H8)Naphthalene?

For (2H8)Naphthalene, Upstream Products: Naphthalene, dihydronaphthalene; Downstream Products: 1-PHENYLNAPHTHALENE, 2-Naphthol-d8, 1,4-Naphthoquinone-d6.

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

Last updated:

How to cite: Jingsj. "(2H8)Naphthalene (CAS 1146-65-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22960-9 (accessed 2026-11-06).

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