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Octyl isocyanate

Also known as: 1-isocyanatooctane, 1-isocyanato-octane, n-octyl isocyanate, 1-octyl isocyanate, octyl isocyanate, 8-isocyanatooctane, isocyanic acid, octyl ester, octane, 1-isocyanato-

Octyl isocyanate (CAS 3158-26-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H17NO and a molecular weight of 155.23700 g/mol. Key properties include a boiling point of 200-204 °C(lit.), a density of 0.88 g/mL at 25 °C(lit.) and a flash point of 71.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
3158-26-7
Jingsj CID
J-33975-3
Molecular Formula
C9H17NO
Molecular Weight
155.23700 g/mol
Category
Organic Acids
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point200-204 °C(lit.)
Density0.88 g/mL at 25 °C(lit.)
Flash Point71.1 °C
Exact Mass155.13100
PSA29.43000
LogP2.68270
Refractive Indexn20/D 1.432(lit.)
Additional PropertyDECOMPOSES

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2929109000
Summary2929109000. other isocyanates. 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 Octyl isocyanate?

The CAS number of Octyl isocyanate is 3158-26-7.

What are the molecular formula and molecular weight of Octyl isocyanate?

Octyl isocyanate has molecular formula C9H17NO and molecular weight 155.23700 g/mol.

Is Octyl isocyanate hazardous?

Octyl isocyanate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Octyl isocyanate?

For Octyl isocyanate, Upstream Products: Carbon dioxide, 1-Iodooctane, Octylamine.

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

Last updated:

How to cite: Jingsj. "Octyl isocyanate (CAS 3158-26-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33975-3 (accessed 2026-11-09).

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