Description

Cyclopent[D][1,3]Oxazin-2(1H)-One, Hexahydro-7A-Methyl-, (4Ar,7As)-Rel- (9Ci) is a high-purity, stereochemically defined heterocyclic compound identified by CAS number 421765-75-5. This advanced pharmaceutical intermediate is valued for its precise molecular architecture, which is critical for synthesizing complex active pharmaceutical ingredients (APIs) with specific biological activity. It is primarily sought by research and development teams and process chemists in the pharmaceutical and agrochemical industries for the development of novel therapeutic agents and crop protection solutions.

Application

• Pharmaceutical Intermediate: A key chiral building block in the synthesis of novel drug candidates, particularly in central nervous system (CNS) and anti-infective therapeutic areas.
• Agrochemical Research: Used in the development of new, high-efficacy pesticides and herbicides, leveraging its complex bicyclic structure.
• Chemical Synthesis: Serves as a versatile precursor for creating other complex heterocyclic compounds in medicinal chemistry.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological studies and the exploration of new synthetic pathways.
• Process Development & Scale-Up: Utilized in pilot plants and kilo labs to optimize synthetic routes for commercial-scale manufacturing.

Basic Information

Product Name	Cyclopent[D][1,3]Oxazin-2(1H)-One, Hexahydro-7A-Methyl-, (4Ar,7As)-Rel- (9Ci)
CAS No.	421765-75-5
Molecular Formula	C8H13NO2
Molecular Weight	155.19 g/mol
Synonyms	rel-(4aR,7aS)-Hexahydro-7a-methylcyclopent[d][1,3]oxazin-2(1H)-one; Hexahydro-7a-methylcyclopent[d][1,3]oxazin-2(1H)-one, (4aR,7aS)-rel-; 421765-75-5; Cyclopentoxazinone derivative; Bicyclic lactam intermediate; Chiral oxazinone
EINECS	Contact for details

Quality Control

Every batch of this advanced intermediate is produced under strict quality management systems. We employ advanced analytical techniques including HPLC, GC, and chiral analysis to ensure identity, purity, and stereochemical integrity. A comprehensive Certificate of Analysis (COA) detailing purity, chiral excess, and impurity profiles is provided with each shipment to support your regulatory and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). The compound may be hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere if specified for long-term storage.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% e.e.
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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