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1,9-diaminononane

Also known as: 1,9-nonanediamine, nonamethylenediamine, nonane-1,9-diamine, diaminononane, EINECS 211-470-3, MFCD00008251

1,9-diaminononane (CAS 646-24-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C9H22N2 and a molecular weight of 158.284 g/mol. Key properties include a melting point of 35-37 °C(lit.), a boiling point of 258.7±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 110.6±24.8 °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.
646-24-2
Jingsj CID
J-27949-2
Molecular Formula
C9H22N2
Molecular Weight
158.284 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point35-37 °C(lit.)
Boiling Point258.7±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point110.6±24.8 °C
Exact Mass158.178299
PSA52.04000
LogP1.63
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.463

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2921290000
Summary2921290000 other acyclic 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 1,9-diaminononane?

The CAS number of 1,9-diaminononane is 646-24-2.

What are the molecular formula and molecular weight of 1,9-diaminononane?

1,9-diaminononane has molecular formula C9H22N2 and molecular weight 158.284 g/mol.

Is 1,9-diaminononane hazardous?

1,9-diaminononane 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 1,9-diaminononane?

For 1,9-diaminononane, Upstream Products: Azelanitrile, Azelaic acid; Downstream Products: tert-Butyl (9-aminononyl)carbamate, 1,9-Bis(maleimide)nonane.

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

Last updated:

How to cite: Jingsj. "1,9-diaminononane (CAS 646-24-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27949-2 (accessed 2026-11-09).

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