Description

4H-Pyrano[3,4-D]Oxazol-2(3H)-One,6-Ethoxytetrahydro-3,4-Dimethyl-,[3Ar-(3Aalpha,4Alpha,6Bta,7Aalpha)]-(9Ci) CAS NO 81794-10-7 is a complex heterocyclic compound belonging to the pyran-oxazole fused ring system. This specialized chemical serves as a critical advanced intermediate in the synthesis of novel active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily required by pharmaceutical R&D laboratories and custom synthesis facilities focused on developing new therapeutic agents and high-value specialty molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry research.
• Organic Synthesis Reagent: Used in complex multi-step syntheses to construct fused heterocyclic scaffolds with potential biological activity.
• Agrochemical Research: Intermediate in the development of new pesticides or herbicides with unique modes of action.
• Material Science Precursor: Potential starting material for synthesizing specialized organic electronic materials or ligands for catalysis.
• Academic & Institutional Research: Used in universities and research institutes for studying heterocyclic chemistry and reaction mechanisms.
• Custom Manufacturing: Sourced by contract development and manufacturing organizations (CDMOs) for client-specific synthesis projects.

Basic Information

Item	Details
Product Name	4H-Pyrano[3,4-D]Oxazol-2(3H)-One,6-Ethoxytetrahydro-3,4-Dimethyl-,[3Ar-(3Aalpha,4Alpha,6Bta,7Aalpha)]-(9Ci)
CAS No.	81794-10-7
Molecular Formula	C11H17NO4
Molecular Weight	227.26 g/mol
Synonyms	6-Ethoxytetrahydro-3,4-dimethyl-4H-pyrano[3,4-d]oxazol-2(3H)-one; 4H-Pyrano[3,4-d]oxazol-2(3H)-one, 6-ethoxytetrahydro-3,4-dimethyl-, [3aR-(3aα,4α,6bβ,7aα)]-; (3aR,4S,6bS,7aS)-6-Ethoxy-3,4-dimethyl-3a,4,6b,7a-tetrahydro-4H-pyrano[3,4-d]oxazol-2(3H)-one; Tetrahydro-6-ethoxy-3,4-dimethyl-4H-pyrano[3,4-d]oxazol-2(3H)-one; 81794-10-7; SCHEMBL23545479; ZINC000000899996.
EINECS	Contact for details

Quality Control

Every batch of this high-purity intermediate is produced under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider inert atmosphere conditions to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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