Description

Propanoic Acid, 2-Methyl-, (9S,10R)-9-(Acetyloxy)-9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-10-Yl Ester is a high-purity, complex organic ester with a defined stereochemistry, serving as a critical advanced pharmaceutical intermediate or research chemical. Its precise molecular architecture makes it valuable for the synthesis of novel compounds in medicinal chemistry and life science research. This product is essential for R&D laboratories and manufacturers in the pharmaceutical and fine chemical sectors seeking reliable, high-quality building blocks for complex synthesis.

Application

• Pharmaceutical Intermediate: Key chiral building block for the research and development of new active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex molecular scaffolds.
• Medicinal Chemistry Research: Used in lead optimization and structure-activity relationship (SAR) studies to develop novel drug candidates with targeted biological activity.
• Fine Chemical Synthesis: Serves as a specialized precursor for synthesizing complex esters, lactones, and other high-value organic compounds in custom synthesis projects.
• Biochemical Research: Potential use as a probe or substrate in enzymatic studies due to its specific stereochemical configuration and functional groups.
• Academic & Industrial R&D: A valuable reagent for universities and corporate R&D centers exploring new chemical entities and synthetic methodologies.

Basic Information

Product Name	Propanoic Acid, 2-Methyl-, (9S,10R)-9-(Acetyloxy)-9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-10-Yl Ester
CAS No.	1562996-11-5
Molecular Formula	C22H24O7
Molecular Weight	400.42 g/mol
Synonyms	(9S,10R)-9-(Acetyloxy)-9,10-dihydro-8,8-dimethyl-2-oxo-2H,8H-benzo[1,2-b:3,4-b']dipyran-10-yl 2-methylpropanoate; 2-Methylpropanoic Acid (9S,10R)-9-(Acetyloxy)-9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-10-Yl Ester; Isobutyric Acid (9S,10R)-9-(Acetyloxy)-9,10-Dihydro-8,8-Dimethyl-2-Oxo-2H,8H-Benzo[1,2-B:3,4-B']Dipyran-10-Yl Ester; CAS 1562996-11-5; Benzo[1,2-b:3,4-b']dipyran-10-yl ester derivative.
EINECS	Contact for details

Quality Control

This product is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and chiral analysis to confirm stereochemical integrity, ensuring it meets the exacting standards required for pharmaceutical R&D. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting identity, purity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). The container should be kept tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Chiral Purity	≥ 99.0% ee
Single Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%
Residual Solvents (GC)	Complies with ICH guidelines

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