Description

2(3H)-Furanone, 5-Acetyldihydro-4-Methyl-, (4S-Cis)- (9Ci) CAS NO 155322-90-0 is a high-purity, stereochemically defined lactone derivative, specifically the (4S-Cis) enantiomer, which is critical for applications requiring precise chiral control. This compound serves as a versatile and valuable chiral building block and intermediate in advanced organic synthesis. It is primarily sought after by research and development laboratories, as well as production facilities, in the pharmaceutical, agrochemical, and specialty fine chemical industries for the synthesis of complex, biologically active molecules.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in areas requiring specific stereochemistry.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides where the specific (4S-Cis) configuration may influence biological activity.
• Fine Chemical Building Block: Employed in the synthesis of complex fragrances, flavors, and other specialty chemicals that benefit from its lactone functionality and defined stereocenter.
• Academic & Industrial Research: Serves as a standard or starting material in methodological studies, catalysis research, and the exploration of new synthetic pathways in organic chemistry.
• Material Science Precursor: Potential use in the development of novel polymers or functional materials with specific optical or chemical properties derived from its structure.

Basic Information

Product Name	2(3H)-Furanone, 5-Acetyldihydro-4-Methyl-, (4S-Cis)- (9Ci)
CAS No.	155322-90-0
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	(4S-Cis)-5-Acetyldihydro-4-methyl-2(3H)-furanone; (4S,5S)-5-Acetyl-4-methyl-dihydrofuran-2(3H)-one; 4-Methyl-5-acetyldihydro-2(3H)-furanone, (4S-cis)-; (4S,5S)-5-Acetyl-4-methyltetrahydrofuran-2-one; Dihydro-4-methyl-5-acetyl-2(3H)-furanone, (4S-cis)-; 5-Acetyl-4-methyldihydrofuran-2(3H)-one (cis, 4S); A chiral acetylated methyl dihydrofuranone.
EINECS	Contact for details

Quality Control

Our production of 2(3H)-Furanone, 5-Acetyldihydro-4-Methyl-, (4S-Cis)- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high enantiomeric purity. Each lot undergoes comprehensive analytical testing, including chiral HPLC, NMR, and GC/MS, to verify identity, purity, and the absence of critical impurities. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider inert atmosphere conditions to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0% (4S-Cis)
Melting Point	Contact for details
Loss on Drying	≤ 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.