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n-propylbenzene

Also known as: 1-Phenylpropane, 4-N-PROPYL BENZENE, BENZENE,PROPYL-, Benzene, propyl-, EINECS 203-132-9, MFCD00009377, N-POPYL BENZENE, N-PROPYL BENZENE, N-PROPYLBENZEN, N-PROPYLBENZENE, PROPYLBENZENE FOR SYNTHESIS, UNII:0WR86ZHG2Z, n-Propylbenzene (1-Phenylpropane), phenylpropane, propylbenzene

n-propylbenzene (CAS 103-65-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H12 and a molecular weight of 120.192 g/mol. Key properties include a melting point of −99 °C(lit.), a boiling point of 159 °C at 760 mmHg, a density of 0.862 and a flash point of 47.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H304 and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
103-65-1
Jingsj CID
J-1993036-1
Molecular Formula
C9H12
Molecular Weight
120.192 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−99 °C(lit.)
Boiling Point159 °C at 760 mmHg
Density0.862
Flash Point47.8±0.0 °C
Exact Mass120.093903
LogP3.74
Additional Property4.14 (vs air)
Vapor Pressure3.1±0.1 mmHg at 25°C
Refractive Index1.495

GHS Safety & Compliance

Flammable / Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H304
  • H335 — May cause respiratory irritation
  • H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of n-propylbenzene?

The CAS number of n-propylbenzene is 103-65-1.

What are the molecular formula and molecular weight of n-propylbenzene?

n-propylbenzene has molecular formula C9H12 and molecular weight 120.192 g/mol.

Is n-propylbenzene hazardous?

n-propylbenzene has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H304; H335 — May cause respiratory irritation.

What are the upstream and downstream products of n-propylbenzene?

For n-propylbenzene, Upstream Products: 1-Bromo-3-phenylpropane, 2-Bromo-1-phenylpropane, Diphenyl ether; Downstream Products: 2-Chloropropylbenzene, (3-Chloropropyl)benzene, (1-chloropropyl)benzene.

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

Last updated:

How to cite: Jingsj. "n-propylbenzene (CAS 103-65-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993036-1 (accessed 2026-11-06).

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