2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one

CAS 20348-09-8C7H6N2O2Chemical Synthesis

2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one (CAS 20348-09-8) is a heterocyclic organic compound with the molecular formula C7H6N2O2 and a molecular weight of 150.13 g/mol. It serves as a valuable building block in chemical synthesis, particularly for constructing more complex molecular architectures. Its utility is evident in the preparation of specific derivative classes, making it a key intermediate for researchers and chemical manufacturers.

Synonyms: 20348-09-82H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-oneC7H6N2O2

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2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one (C7H6N2O2) — chemical structure, CAS 20348-09-8; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisHeterocyclic Building BlocksPyridines

01 /Applications

Synthesis of Quinazolinbenzoxazine Derivatives

2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one has been documented for its use in the synthesis of quinazolinbenzoxazine derivatives. This application highlights its role as a foundational component in constructing complex heterocyclic systems.

Heterocyclic Building Block

As a pyridine and heterocyclic building block, this compound is instrumental in organic synthesis. It allows for the introduction of specific structural motifs into target molecules, facilitating the development of novel compounds for research.

Chemical Synthesis Intermediate

The compound functions as a versatile intermediate in various chemical synthesis pathways. Its structure is amenable to further functionalization, enabling the creation of diverse chemical entities for research and development purposes.

02 /Properties

Molecular weight	150.13
Empirical formula	C7H6N2O2
Assay	95%
Application	2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one was used in the synthesis of quinazolinbenzoxazine derivatives1.
Melting point	204-206 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	36/37/38
Safety statements (S)	26-37/39

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

20348-09-8

MDL number

MFCD00006697

PubChem substance

24848708

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one used for?

2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one is used as a building block in chemical synthesis, notably for the preparation of quinazolinbenzoxazine derivatives.

What is the CAS number and chemical formula for 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one?

The CAS number is 20348-09-8 and the empirical formula (Hill notation) is C7H6N2O2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one with an assay of 95%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product specifications.

How should 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one be handled safely?

This compound is classified as an irritant. Handle with appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, and gloves. Ensure good ventilation, avoid breathing dust, and avoid contact with skin and eyes. Refer to the Safety Data Sheet for comprehensive handling information.

Is this product available for export?

Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one, facilitating international distribution.

How can I request a sample or quote?

To request a sample or a quotation for 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one, please contact our sales department through the website or by phone, providing your specific requirements.