Description

6H-Pyrimido[5,4-B][1,4]Oxazine (9Ci) is a heterocyclic organic compound of significant interest in advanced chemical synthesis. This specialized building block is valued for its unique fused-ring structure, which serves as a critical scaffold in the development of novel active molecules. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for use in medicinal chemistry and the creation of new crop protection agents.

Application

• Pharmaceutical Intermediate: A key synthetic precursor in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders or infectious diseases.
• Agrochemical Research: Used as a core scaffold for designing novel herbicides, fungicides, or insecticides with new modes of action.
• Material Science: Investigated as a building block for organic electronic materials, such as components for organic light-emitting diodes (OLEDs) or semiconductors.
• Academic & Contract Research: Employed in university and CRO laboratories for fundamental studies in heterocyclic chemistry and reaction mechanism exploration.
• Chemical Biology Probe Development: Serves as a starting point for creating molecular probes to study biological pathways and protein functions.

Basic Information

Product Name	6H-Pyrimido[5,4-B][1,4]Oxazine (9Ci)
CAS No.	39586-43-1
Molecular Formula	C6H4N4O
Molecular Weight	148.12 g/mol
Synonyms	6H-Pyrimido[5,4-b][1,4]oxazine; Pyrimido[5,4-b][1,4]oxazine, 6H-; 6H-Pyrimido[5,4-b]-1,4-oxazine; 39586-43-1; CCRIS 9449; NSC 407348; Pyrimidooxazine; 1,4-Oxazine, dihydro-, fused with pyrimidine
EINECS	Contact for details

Quality Control

Our 6H-Pyrimido[5,4-B][1,4]Oxazine (9Ci) is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity for research applications. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Standard Grade)
Purity (HPLC)	≥ 98% (High Purity Grade)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.