![Molecular structure of 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (CAS 443956-11-4)](/images/chem_structures_svg/297/443956-11-4.svg)
3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde
Also known as: 3,4-dihydro-3-oxo-2H-Pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde, 2H-Pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde, 3,4-dihydro-3-oxo-
3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (CAS 443956-11-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6N2O3 and a molecular weight of 178.145 g/mol. Key properties include a boiling point of 425.5±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 211.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 443956-11-4
- Jingsj CID
- J-1515647-5
- Molecular Formula
- C8H6N2O3
- Molecular Weight
- 178.145 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 425.5±45.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 211.1±28.7 °C |
| Exact Mass | 178.037842 |
| PSA | 71.78000 |
| LogP | 0.50 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.619 |
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 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde?
The CAS number of 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde is 443956-11-4.
What are the molecular formula and molecular weight of 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde?
3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde has molecular formula C8H6N2O3 and molecular weight 178.145 g/mol.
What are the upstream and downstream products of 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde?
For 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde, Upstream Products: 6-bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one, 6-(Hydroxymethyl)-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one, 6-Bromo-2-nitropyridin-3-ol; Downstream Products: 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carboxylic acid, 6-(Hydroxymethyl)-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (CAS 443956-11-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515647-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.