Description

Cyclopentanesulfonanilide (5Ci) is a specialized sulfonamide derivative featuring a cyclopentane ring system. This compound serves as a valuable advanced pharmaceutical intermediate and a versatile building block in modern synthetic organic chemistry. It is primarily utilized by research institutions and industrial R&D departments focused on developing novel active pharmaceutical ingredients (APIs), agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or metabolic diseases.
• Agrochemical Research: Used as a core scaffold for developing new herbicides, fungicides, or plant growth regulators with improved efficacy.
• Chemical Biology Probe: Serves as a molecular tool for studying enzyme inhibition or protein-ligand interactions in biochemical assays.
• Material Science: Potential monomer or additive for creating specialty polymers with specific thermal or mechanical properties.
• Organic Synthesis Building Block: Enables the construction of complex molecular architectures through reactions at the sulfonamide or aromatic ring.
• Academic & Contract Research: Employed in university laboratories and CROs (Contract Research Organizations) for method development and discovery chemistry projects.

Basic Information

Product Name	Cyclopentanesulfonanilide (5Ci)
CAS No.	859318-36-8
Molecular Formula	C11H15NO2S
Molecular Weight	225.31 g/mol
Synonyms	N-Phenylcyclopentanesulfonamide; Cyclopentanesulfonic acid phenylamide; 5Ci-Cyclopentanesulfonanilide; Benzenamine, N-(cyclopentylsulfonyl)-; Cyclopentylsulfonanilide; CP-SA; (5-Chloroinden-1-yl)sulfonanilide (related isomer); Research Code 5Ci-Sulfonamide
EINECS	Contact for details

Quality Control

Our Cyclopentanesulfonanilide (5Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes.

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). Keep away from strong oxidizing agents and bases. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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