Description

Carbamic Acid, (2-Oxo-3-Cyclopenten-1-Yl)-, 1,1-Dimethylethyl Ester, (S)- (9Ci) is a high-purity, chiral building block of significant interest in advanced organic synthesis. Its value lies in its role as a key intermediate for constructing complex molecules with defined stereochemistry, which is critical for developing active pharmaceutical ingredients (APIs). This compound is primarily needed by research institutions and pharmaceutical companies engaged in the development of novel therapeutics, agrochemicals, and other fine chemicals where precise molecular architecture is paramount.

Application

• Pharmaceutical Intermediate: Serves as a crucial chiral synthon in the research and development of new Active Pharmaceutical Ingredients (APIs), particularly for central nervous system (CNS) and anti-inflammatory drugs.
• Agrochemical Synthesis: Used in the synthesis of advanced, enantiomerically pure pesticides and herbicides to enhance efficacy and reduce environmental impact.
• Asymmetric Catalysis Research: Employed as a substrate or ligand precursor in academic and industrial research focused on developing new asymmetric synthetic methodologies.
• Fine Chemical Production: Acts as a building block for the manufacture of complex, high-value specialty chemicals used in electronics and material science.
• Process Chemistry Development: Utilized in scaling up synthetic routes from laboratory to pilot plant and commercial production, where its defined stereochemistry ensures batch-to-batch consistency.

Basic Information

Product Name	Carbamic Acid, (2-Oxo-3-Cyclopenten-1-Yl)-, 1,1-Dimethylethyl Ester, (S)- (9Ci)
CAS No.	183606-89-5
Molecular Formula	C12H17NO3
Molecular Weight	223.27 g/mol
Synonyms	(S)-tert-Butyl 2-(2-oxocyclopent-3-en-1-yl)carbamate; (S)-1-(tert-Butoxycarbonylamino)-2-cyclopenten-1-one; (S)-N-Boc-2-amino-2-cyclopentenone; (S)-N-(tert-Butoxycarbonyl)-2-amino-2-cyclopenten-1-one; (S)-2-((tert-Butoxycarbonyl)amino)-2-cyclopenten-1-one; (S)-Boc-2-Amino-2-cyclopentenone; tert-Butyl (S)-(2-oxocyclopent-3-en-1-yl)carbamate; (S)-Boc-Cyclopentenylamine Ketone
EINECS	Contact for details

Quality Control

Our production of Carbamic Acid, (2-Oxo-3-Cyclopenten-1-Yl)-, 1,1-Dimethylethyl Ester, (S)- (9Ci) adheres to stringent quality management systems to ensure the highest standards of purity and chiral integrity. Each batch is fully characterized and tested using advanced analytical techniques, including chiral HPLC, to guarantee enantiomeric excess (ee) and chemical purity meet exacting customer requirements. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

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). The compound may be sensitive to moisture and prolonged exposure to elevated temperatures; therefore, it is recommended to store under an inert atmosphere for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines

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