Description

1H-Pyrimido[4,5-C][1,2]Oxazine, 3,4-Dihydro- (9Ci) is a specialized heterocyclic organic compound with the CAS number 259881-55-5. This high-purity intermediate is valued for its unique fused-ring structure, which serves as a critical building block in advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and complex molecular scaffolds.

Application

This advanced chemical intermediate enables innovation across several high-value research and manufacturing sectors.

• Pharmaceutical Research: A key precursor in the synthesis of novel drug candidates, particularly for targeting specific biological pathways.
• Agrochemical Development: Used in creating new active ingredients for crop protection products with enhanced efficacy.
• Organic Synthesis & Material Science: Serves as a sophisticated building block for constructing complex heterocyclic frameworks in advanced materials.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological studies and the discovery of new chemical entities.

Basic Information

Product Name	1H-Pyrimido[4,5-C][1,2]Oxazine, 3,4-Dihydro- (9Ci)
CAS No.	259881-55-5
Molecular Formula	C6H6N4O
Molecular Weight	150.14 g/mol
Synonyms	3,4-Dihydro-1H-pyrimido[4,5-c][1,2]oxazine; 1H-Pyrimido[4,5-c][1,2]oxazine, 3,4-dihydro-; 259881-55-5; Pyrimidooxazine derivative; Dihydropyrimidooxazine; Fused pyrimidine-oxazine; CAS 259881-55-5
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our fine chemical intermediates. Every batch of 1H-Pyrimido[4,5-C][1,2]Oxazine, 3,4-Dihydro- is analyzed to ensure it meets high-purity standards suitable for research and development applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical work.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Related Substances (HPLC)	Individual impurity ≤ 1.0%
Total Impurities	≤ 3.0%
Residual Solvents (GC)	Complies with ICH guidelines
Water Content (KF)	≤ 0.5%

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