![Molecular structure of 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione (CAS 21038-63-1)](/images/chem_structures_svg/372/21038-63-1.svg)
1H-pyrido[2,3-d][1,3]oxazine-2,4-dione
Also known as: 2H-pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione, 3-azaisatoic anhydride, 1H,2H,4H-pyrido[2,3-d][1,3]oxazine-2,4-dione, 2,4-dihydro-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione, 1H-pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione
1H-pyrido[2,3-d][1,3]oxazine-2,4-dione (CAS 21038-63-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4N2O3 and a molecular weight of 164.11800 g/mol. Key property: a density of 1.498g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21038-63-1
- Jingsj CID
- J-1560802-3
- Molecular Formula
- C7H4N2O3
- Molecular Weight
- 164.11800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.498g/cm3 |
|---|---|
| Exact Mass | 164.02200 |
| PSA | 75.96000 |
| Refractive Index | 1.593 |
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 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione?
The CAS number of 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione is 21038-63-1.
What are the molecular formula and molecular weight of 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione?
1H-pyrido[2,3-d][1,3]oxazine-2,4-dione has molecular formula C7H4N2O3 and molecular weight 164.11800 g/mol.
What are the upstream and downstream products of 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione?
For 1H-pyrido[2,3-d][1,3]oxazine-2,4-dione, Upstream Products: 2,3-Pyridinedicarboxylic anhydride, 2-(aminocarbonyl)nicotinic acid, 2-Aminonicotinic acid; Downstream Products: 1H-Pyrrolo[2,3-b]pyridine-2,3-dione, 1-Isopentyl-1H-pyrido[2,3-d][1,3]oxazine-2,4-dione, 1-Methyl-2H-pyrido[2,3-d][1,3]oxazine-2,4(1H)-dione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-pyrido[2,3-d][1,3]oxazine-2,4-dione (CAS 21038-63-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1560802-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.