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1,9-Nonanedithiol

Also known as: 1,9-Dimercaptononane, Nonane-1,9-dithiol, Nonamethylene dimercaptan, 1,9-Nonanedithiol, 1,9-Dimercaptononane~Nonamethylene dimercaptan, Nonane-1,9-bisthiol, 9-Mercapto-1-nonanethiol, Nonan-1,9-dithiol, Nonane-1,9-dithiol, 1,9-Nonanedithiole, FEMA 3513, MFCD00004914, EINECS 222-482-3

1,9-Nonanedithiol (CAS 3489-28-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C9H20S2 and a molecular weight of 192.385 g/mol. Key properties include a melting point of -17.5ºC, a boiling point of 279.4±13.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 101.7±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.
3489-28-9
Jingsj CID
J-20130-9
Molecular Formula
C9H20S2
Molecular Weight
192.385 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-17.5ºC
Boiling Point279.4±13.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point101.7±0.0 °C
Exact Mass192.100647
PSA77.60000
LogP4.40
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.492
Additional Propertyinsoluble

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,9-Nonanedithiol?

The CAS number of 1,9-Nonanedithiol is 3489-28-9.

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

1,9-Nonanedithiol has molecular formula C9H20S2 and molecular weight 192.385 g/mol.

Is 1,9-Nonanedithiol hazardous?

1,9-Nonanedithiol 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-Nonanedithiol?

For 1,9-Nonanedithiol, Upstream Products: 1,9-Dibromononane, 1,9-Nonanediol.

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-Nonanedithiol (CAS 3489-28-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20130-9 (accessed 2026-11-09).

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