Description

Carbamic Acid, (5-Oxo-1-Cyclopenten-1-Yl)-, 1,1-Dimethylethyl Ester (9Ci) is a specialized organic compound featuring a cyclopentenone moiety protected by a tert-butyl carbamate group. This structure makes it a valuable protected intermediate and building block in advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of complex molecules, including potential active ingredients and novel chemical entities.

Application

• Pharmaceutical Intermediate: Serves as a key protected synthon in the multi-step synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used as a building block for developing novel pesticides, herbicides, and plant growth regulators.
• Organic Synthesis: Acts as a versatile precursor for introducing the 5-oxo-1-cyclopenten-1-yl moiety into target molecules under controlled conditions.
• Material Science: Potential intermediate in the synthesis of specialty polymers and advanced organic materials with specific functional properties.
• Academic & Industrial R&D: Employed in method development and exploratory chemistry for creating new chemical libraries and scaffolds.

Basic Information

Product Name	Carbamic Acid, (5-Oxo-1-Cyclopenten-1-Yl)-, 1,1-Dimethylethyl Ester (9Ci)
CAS No.	170883-37-1
Molecular Formula	C11H15NO3
Molecular Weight	209.24 g/mol
Synonyms	tert-Butyl (5-oxo-1-cyclopenten-1-yl)carbamate; 1-(tert-Butoxycarbonylamino)-1-cyclopentene-5-one; 1-(Boc-amino)-1-cyclopentene-5-one; 1-(N-Boc-amino)-1-cyclopentene-5-one; 5-Oxo-1-cyclopenten-1-ylcarbamic acid tert-butyl ester; N-Boc-1-amino-1-cyclopentene-5-one; (5-Oxo-1-cyclopenten-1-yl)carbamic acid 1,1-dimethylethyl ester
EINECS	Contact for details

Quality Control

Our Carbamic Acid, (5-Oxo-1-Cyclopenten-1-Yl)-, 1,1-Dimethylethyl Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We support cGMP and ISO-aligned standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). The compound may be moisture-sensitive; keep the container tightly sealed under an inert atmosphere if necessary. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.