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Cyclopentylamine

Also known as: Aminocyclopentane, Cyclopentanamine, Cyclopentylamine

Cyclopentylamine (CAS 1003-03-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H11N and a molecular weight of 85.147 g/mol. Key properties include a melting point of -85°C, a boiling point of 110.0±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 17.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H300 and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1003-03-8
Jingsj CID
J-1565335-8
Molecular Formula
C5H11N
Molecular Weight
85.147 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-85°C
Boiling Point110.0±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point17.2±0.0 °C
Exact Mass85.089149
PSA26.02000
LogP0.83
Vapor Pressure24.2±0.2 mmHg at 25°C
Refractive Index1.465
Additional PropertyMISCIBLE

GHS Safety & Compliance

Flammable / Corrosion / Acute ToxicitySignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H300
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H318 — Causes serious eye damage
  • H332 — Harmful if inhaled

Customs & Trade Information

HS Code2921300090
Summary2921300090 other cyclanic, cyclenic or cyclotherpenic mono- or polyamines, and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Cyclopentylamine?

The CAS number of Cyclopentylamine is 1003-03-8.

What are the molecular formula and molecular weight of Cyclopentylamine?

Cyclopentylamine has molecular formula C5H11N and molecular weight 85.147 g/mol.

Is Cyclopentylamine hazardous?

Cyclopentylamine has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H300; H315 — Causes skin irritation.

What are the upstream and downstream products of Cyclopentylamine?

For Cyclopentylamine, Upstream Products: nitrocyclopentane, 2,4-difluoro-N-(2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)benzenesulfonamide, Cyclopentanone oxime; Downstream Products: 3-(Cyclopentylamino)propionitrile, Cyclopentyl isothiocyanate, N-(4-nitrophenyl)benzamide.

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

Last updated:

How to cite: Jingsj. "Cyclopentylamine (CAS 1003-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1565335-8 (accessed 2026-11-06).

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