Description

(S)-Methyl-4,5-Isopropylidene-2-Pentanoate CAS NO 90472-93-8 is a high-purity chiral building block and ester derivative, valued for its role in asymmetric synthesis. This compound is essential for constructing complex molecular architectures with precise stereochemical control. It is primarily sought after by research institutions and manufacturers in the pharmaceutical and fine chemical industries for developing active pharmaceutical ingredients (APIs) and advanced intermediates.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Asymmetric Synthesis: Used as a building block for constructing stereochemically defined compounds in medicinal chemistry research.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring specific enantiomeric purity.
• Academic & Industrial R&D: Serves as a valuable reagent for methodological development in organic synthesis and catalysis studies.

Basic Information

Product Name	(S)-Methyl-4,5-Isopropylidene-2-Pentanoate
CAS No.	90472-93-8
Molecular Formula	C10H18O3
Molecular Weight	186.25 g/mol
Synonyms	(S)-Methyl 4,5-O-Isopropylidene-2-pentenoate; (S)-Methyl 4,5-O-(1-Methylethylidene)-2-pentenoate; (S)-4,5-Isopropylidene-2-pentenoic Acid Methyl Ester; (S)-Methyl 2,3-Dideoxy-4,5-O-isopropylidene-2-pentenoate; (S)-Methyl 4,5-O-Isopropylidenepent-2-enoate
EINECS	Contact for details

Quality Control

Our (S)-Methyl-4,5-Isopropylidene-2-Pentanoate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity assessment by HPLC, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and enantiomeric excess are 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 sources and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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