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Cyclopentane

Also known as: Cyclopentane,AcroSeal,Extra Dry, EINECS 206-016-6, L-selectride, MFCD00001356, cyclopentane, pentamethylene

Cyclopentane (CAS 287-92-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H10 and a molecular weight of 70.133 g/mol. Key properties include a melting point of -94 °C, a boiling point of 49.2±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -37.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
287-92-3
Jingsj CID
J-44545-2
Molecular Formula
C5H10
Molecular Weight
70.133 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-94 °C
Boiling Point49.2±0.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point-37.2±0.0 °C
Exact Mass70.078247
LogP2.82
Additional Property~2 (vs air)
Vapor Pressure314.1±0.0 mmHg at 25°C
Refractive Index1.433

GHS Safety & Compliance

FlammableSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H412 — Harmful to aquatic life with long lasting effects

Customs & Trade Information

HS Code2902199090
Summary2902199090 other cyclanes, cyclenes and cyclotherpenes。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 Cyclopentane?

The CAS number of Cyclopentane is 287-92-3.

What are the molecular formula and molecular weight of Cyclopentane?

Cyclopentane has molecular formula C5H10 and molecular weight 70.133 g/mol.

Is Cyclopentane hazardous?

Cyclopentane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H412 — Harmful to aquatic life with long lasting effects.

What are the upstream and downstream products of Cyclopentane?

For Cyclopentane, Upstream Products: Cyclopentanone, Cyclopentadiene, Cyclopentylmagnesium bromide; Downstream Products: Cyclopentanecarboxylic acid, Cyclopentanone, Succinimide.

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

Last updated:

How to cite: Jingsj. "Cyclopentane (CAS 287-92-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44545-2 (accessed 2026-11-06).

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