Description

D-Erythro-Pentaric Acid, 2,3-Dideoxy-3-Methyl-4-C-Methyl-, 1,4-Lactone (9Ci) is a specialized chiral lactone derivative, serving as a high-value synthetic intermediate in advanced organic chemistry. Its unique stereochemistry and functionalized lactone ring make it a critical building block for constructing complex molecular architectures. This compound is essential for researchers and process chemists in the pharmaceutical and fine chemical industries, particularly for the development of novel active pharmaceutical ingredients (APIs) and chiral catalysts.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel therapeutic agents, including antiviral and antibiotic compounds.
• Asymmetric Synthesis: Used as a precursor or auxiliary in stereoselective reactions to introduce specific chiral centers into target molecules.
• Fine Chemical Production: Serves as a building block for the synthesis of complex flavors, fragrances, and specialty agrochemicals.
• Academic & Industrial R&D: A valuable reference standard and starting material in methodological chemistry research and process optimization studies.
• Catalyst Ligand Synthesis: Potential precursor for developing novel chiral ligands used in homogeneous catalysis.

Basic Information

Product Name	D-Erythro-Pentaric Acid, 2,3-Dideoxy-3-Methyl-4-C-Methyl-, 1,4-Lactone (9Ci)
CAS No.	240118-48-3
Molecular Formula	C7H10O4
Molecular Weight	158.15 g/mol
Synonyms	2,3-Dideoxy-3-methyl-4-C-methyl-D-erythro-pentaric acid 1,4-lactone; (3R,4R)-3,4-Dihydro-3,4-dimethyl-2H-pyran-2,6(3H)-dione; D-erythro-2,3-Dideoxy-3-methyl-4-C-methylpentaric acid 1,4-lactone; 240118-48-3; 2H-Pyran-2,6(3H)-dione, 3,4-dihydro-3,4-dimethyl-, (3R,4R)-
EINECS	Contact for details

Quality Control

Our D-Erythro-Pentaric Acid, 2,3-Dideoxy-3-Methyl-4-C-Methyl-, 1,4-Lactone (9Ci) is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including chiral purity verification and impurity profiling, to ensure it meets the exacting standards required for research and synthesis. Certificates of Analysis (COA) with detailed chromatographic data (HPLC, GC) are provided to guarantee traceability and batch-to-batch consistency.

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). Keep the container tightly sealed in a dry environment to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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