3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine

3,4-二氢-2H-吡啶并[3,2-b]-1,4-噁嗪

Also known as: 2H-Pyrido[3,2-b]-1,4-oxazine, 3,4-dihydro-, 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine, 3,4-Dihydro-2H-pyrido[3,2-b]oxazine, 3,4-Dihydro-2H-1-oxa-4,5-diaza-naphthalene, dihydropyridoboxazine, Compound Fr16627, 2H,3H,4H-pyrido[3,2-b][1,4]oxazine, 3,4-Dihydro-2H-pyrido<3,2-b>-1,4-oxazin

3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine (CAS 20348-23-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O and a molecular weight of 136.151 g/mol. It is also known as 2H-Pyrido[3,2-b]-1,4-oxazine, 3,4-dihydro-, 3,4-Dihydro-2H-pyrido[3,2-b]oxazine and 3,4-Dihydro-2H-1-oxa-4,5-diaza-naphthalene. Key properties include a melting point of 85ºC, a boiling point of 285.7±29.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 126.6±24.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20348-23-6
Jingsj CID
J-1498062-0
Molecular Formula
C7H8N2O
Chinese Name
3,4-二氢-2H-吡啶并[3,2-b]-1,4-噁嗪
Molecular Weight
136.151 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point85ºC
Boiling Point285.7±29.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point126.6±24.3 °C

Frequently Asked Questions

What is the CAS number of 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine?

The CAS number of 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine is 20348-23-6.

What are the molecular formula and molecular weight of 3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine?

3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine has molecular formula C7H8N2O and molecular weight 136.151 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazine (CAS 20348-23-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498062-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.