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4-Methylmorpholine 4-oxide

Also known as: N-Methylmorpholine N-oxide, N-Methylmorpholine oxide, 4-Methylmorpholine N-oxide, NMMO, Morpholine, 4-methyl-, 4-oxide

4-Methylmorpholine 4-oxide (CAS 7529-22-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H11NO2 and a molecular weight of 117.14800 g/mol. Key properties include a melting point of 180-184ºC, a boiling point of 118-119ºC, a density of 1.14 g/cm3 and a flash point of 118-119ºC. 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 Nov 2, 2026.

CAS No.
7529-22-8
Jingsj CID
J-31656-3
Molecular Formula
C5H11NO2
Molecular Weight
117.14800 g/mol
Category
Pharma Intermediates
Last updated
11/2/2026

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Physicochemical Properties

Melting Point180-184ºC
Boiling Point118-119ºC
Density1.14 g/cm3
Flash Point118-119ºC
Exact Mass135.089539
PSA38.66000
LogP-1.82
Refractive Indexn20/D 1.43

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-Methylmorpholine 4-oxide?

The CAS number of 4-Methylmorpholine 4-oxide is 7529-22-8.

What are the molecular formula and molecular weight of 4-Methylmorpholine 4-oxide?

4-Methylmorpholine 4-oxide has molecular formula C5H11NO2 and molecular weight 117.14800 g/mol.

Is 4-Methylmorpholine 4-oxide hazardous?

4-Methylmorpholine 4-oxide 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-Methylmorpholine 4-oxide?

For 4-Methylmorpholine 4-oxide, Upstream Products: 4-methylmorpholine; Downstream Products: morpholine, Formaldehyde, Azoxybenzene.

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-Methylmorpholine 4-oxide (CAS 7529-22-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31656-3 (accessed 2026-11-09).

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