morpholine
Also known as: 1,4-Oxazinan, 1,4-oxazine,tetrahydro-, 1-Oxa-4-azacyclohexane, 2H-1,4-Oxazine, tetrahydro-, 4H-1,4-Oxazine, tetrahydro-, BASF 238, Diethylenimide oxide, Drewamine, EINECS 203-815-1, MFCD00005972, MORPHOLIN, MORPHOLINE,ACS, Morpholine, Tetrahydro-1,4-oxazine, basf238, diethylenimideoxide, dihydro-1,4-oxazine, perhydro-1,4-oxazine
morpholine (CAS 110-91-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H9NO and a molecular weight of 87.120 g/mol. Key properties include a melting point of -5 °C, a boiling point of 128.9±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 35.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 110-91-8
- Jingsj CID
- J-1991479-0
- Molecular Formula
- C4H9NO
- Molecular Weight
- 87.120 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -5 °C |
|---|---|
| Boiling Point | 128.9±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 35.6±0.0 °C |
| Exact Mass | 87.068413 |
| PSA | 21.26000 |
| LogP | -1.08 |
| Additional Property | 3 (vs air) |
| Vapor Pressure | 10.4±0.2 mmHg at 25°C |
| Refractive Index | 1.415 |
| Additional Property | MISCIBLE |
| Additional Property | -4.9℃ |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. 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 morpholine?
The CAS number of morpholine is 110-91-8.
What are the molecular formula and molecular weight of morpholine?
morpholine has molecular formula C4H9NO and molecular weight 87.120 g/mol.
Is morpholine hazardous?
morpholine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of morpholine?
For morpholine, Upstream Products: 2-(2-Aminoethoxy)ethanol, Diethylene glycol, N-Nitrosomorpholine; Downstream Products: 4-Morpholino-3-(trifluoromethyl)aniline, 4-(6-Chloro-3-nitropyridin-2-yl)morpholine, 4-(6-morpholino-3-nitropyridin-2-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. "morpholine (CAS 110-91-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991479-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.