4-(Dimethylamino)pyridine 1-oxide
Also known as: 4-Dimethylaminopyridine N-oxide, DMAPO, 4-Pyridinamine, N,N-dimethyl-, 1-oxide, N,N-Dimethyl-4-pyridinamine 1-oxide, 4-(Dimethylamino)pyridine N-Oxide Hydrate
4-(Dimethylamino)pyridine 1-oxide (CAS 1005-31-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O and a molecular weight of 138.167 g/mol. Key properties include a melting point of 97ºC, a boiling point of 316.5±15.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 145.2±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1005-31-8
- Jingsj CID
- J-22178-3
- Molecular Formula
- C7H10N2O
- Molecular Weight
- 138.167 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 97ºC |
|---|---|
| Boiling Point | 316.5±15.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 145.2±20.4 °C |
| Exact Mass | 138.079315 |
| PSA | 28.70000 |
| LogP | -0.90 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.520 |
Frequently Asked Questions
What is the CAS number of 4-(Dimethylamino)pyridine 1-oxide?
The CAS number of 4-(Dimethylamino)pyridine 1-oxide is 1005-31-8.
What are the molecular formula and molecular weight of 4-(Dimethylamino)pyridine 1-oxide?
4-(Dimethylamino)pyridine 1-oxide has molecular formula C7H10N2O and molecular weight 138.167 g/mol.
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-(Dimethylamino)pyridine 1-oxide (CAS 1005-31-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22178-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.