Description

Butanedioic Acid, Hydroxy-, 1-Ethyl Ester, (S)- (9Ci) is a high-purity chiral intermediate of significant value in the synthesis of optically active compounds. Its defined stereochemistry makes it a critical building block for producing pharmaceuticals and fine chemicals with specific biological activity. This product is essential for research and development laboratories, as well as production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-quality chiral synthons.

Application

• Pharmaceutical Intermediate: A key chiral precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for cardiovascular and central nervous system drugs.
• Asymmetric Synthesis: Used as a starting material or resolving agent in catalytic asymmetric reactions to construct complex molecular architectures.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, including flavors, fragrances, and advanced materials requiring specific enantiomeric purity.
• Agrochemical Research: Serves as a building block for developing novel, enantiomerically pure pesticides and herbicides with improved efficacy and environmental profiles.
• Biochemical Research: Utilized in enzymatic studies and the synthesis of labeled compounds for metabolic pathway analysis.

Basic Information

Product Name	Butanedioic Acid, Hydroxy-, 1-Ethyl Ester, (S)- (9Ci)
CAS No.	83540-95-8
Molecular Formula	C6H10O5
Molecular Weight	162.14 g/mol
Synonyms	(S)-Ethyl Hydrogen Malate; (S)-1-Ethyl Hydrogen Malate; L-Ethyl Hydrogen Malate; Ethyl (S)-Hydroxysuccinate; (S)-Ethyl 2-Hydroxysuccinate; Hydroxysuccinic Acid 1-Ethyl Ester (S)-; Ethyl L-Malate; Butanedioic acid, hydroxy-, 1-ethyl ester, (S)-
EINECS	Contact for details

Quality Control

Our Butanedioic Acid, Hydroxy-, 1-Ethyl Ester, (S)- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity assay and impurity profiling, to ensure it meets the stringent requirements for advanced synthetic applications. Certificates of Analysis (COA) detailing specific results for identity, purity, and enantiomeric excess are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

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

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