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4-(pyridin-4-yl)morpholine

Also known as: 4-(4-pyridyl)morpholine, 4-morpholinopyridine, 4-(4-morpholinyl)pyridine, 4-(pyridin-4-yl)morpholine, 4-(morpholin-4-yl)pyridine, N-(4-pyridyl)morpholine, 4-pyridin-4-ylmorpholine, MFCD00704054

4-(pyridin-4-yl)morpholine (CAS 2767-91-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12N2O and a molecular weight of 164.204 g/mol. Key properties include a melting point of 102-108ºC(lit.), a boiling point of 301.3±32.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 136.0±25.1 °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.
2767-91-1
Jingsj CID
J-1412421-1
Molecular Formula
C9H12N2O
Molecular Weight
164.204 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point102-108ºC(lit.)
Boiling Point301.3±32.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point136.0±25.1 °C
Exact Mass164.094955
PSA25.36000
LogP0.37
AppearancePowder | Yellow to orange
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.545

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-(pyridin-4-yl)morpholine?

The CAS number of 4-(pyridin-4-yl)morpholine is 2767-91-1.

What are the molecular formula and molecular weight of 4-(pyridin-4-yl)morpholine?

4-(pyridin-4-yl)morpholine has molecular formula C9H12N2O and molecular weight 164.204 g/mol.

Is 4-(pyridin-4-yl)morpholine hazardous?

4-(pyridin-4-yl)morpholine 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 4-(pyridin-4-yl)morpholine?

For 4-(pyridin-4-yl)morpholine, Upstream Products: morpholine, 4-Chloropyridine hydrochloride, 4-Methoxypyridine; Downstream Products: 4-(Piperidin-4-yl)morpholine.

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

Last updated:

How to cite: Jingsj. "4-(pyridin-4-yl)morpholine (CAS 2767-91-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1412421-1 (accessed 2026-11-09).

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