Description

Butanedioic Acid, Chloro-, Dimethyl Ester, (R)- (9Ci) is a high-purity chiral building block and synthetic intermediate. This compound matters for its role in the stereoselective synthesis of complex molecules, particularly in the development of active pharmaceutical ingredients (APIs). It is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise chirality control. The product is supplied under strict quality control to ensure batch-to-batch consistency for critical synthetic pathways.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of enantiomerically pure drugs and bioactive molecules.
• Agrochemical Synthesis: Used in the production of chiral pesticides and herbicides where specific stereochemistry is required for activity.
• Asymmetric Catalysis Research: Serves as a substrate or ligand precursor in the development of new catalytic systems.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring the (R)-enantiomer.
• Academic & R&D: Utilized in university and corporate research laboratories for methodological studies in organic synthesis.

Basic Information

Product Name	Butanedioic Acid, Chloro-, Dimethyl Ester, (R)- (9Ci)
CAS No.	111618-88-3
Molecular Formula	C6H9ClO4
Molecular Weight	180.59 g/mol
Synonyms	(R)-Chlorosuccinic Acid Dimethyl Ester; Dimethyl (R)-2-Chlorosuccinate; (R)-2-Chlorosuccinic Acid Dimethyl Ester; (R)-Dimethyl 2-Chlorosuccinate; (R)-Dimethyl Chlorosuccinate; (2R)-2-Chlorobutanedioic Acid Dimethyl Ester; Methyl (R)-2-Chloro-1,4-butanedioate; (R)-Methyl 2-Chlorosuccinate
EINECS	Contact for details

Quality Control

Our Butanedioic Acid, Chloro-, Dimethyl Ester, (R)- (9Ci) is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure high chemical and enantiomeric purity, meeting the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and chiral excess are provided and available upon request.

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 holding under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 0.5%

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