Description

Sulphopropylcellulose CAS NO 37325-18-1 is a chemically modified cellulose derivative, specifically a strong cation exchanger. This product is valued for its high capacity and stability, making it an essential functional material for separation and purification processes. It is primarily used by manufacturers in the pharmaceutical, biotechnology, and fine chemical industries for applications such as chromatography and protein purification.

Application

• Ion-Exchange Chromatography: As a stationary phase for the purification of proteins, peptides, enzymes, and other biomolecules.
• Pharmaceutical Purification: For the downstream processing and isolation of active pharmaceutical ingredients (APIs).
• Biotechnology Processes: Used in the capture and polishing steps for monoclonal antibodies and recombinant proteins.
• Water Treatment: As an ion-exchange medium for the removal of cationic contaminants in specialized industrial water systems.
• Catalyst Support: Serving as a solid support for cationic catalysts in organic synthesis.
• Analytical Chemistry: As a packing material in analytical columns for high-performance liquid chromatography (HPLC).

Basic Information

Product Name	Sulphopropylcellulose
CAS No.	37325-18-1
Molecular Formula	(C9H14O8S)n
Molecular Weight	Unit: ~282.3 g/mol (for repeating unit)
Synonyms	SP-Cellulose; Cellulose Sulfopropyl Ether; Sulphopropyl Cellulose; Cellulose, 2-hydroxy-3-sulfopropyl ether; Cation Exchange Cellulose; Sephadex SP; SP Sephadex; Strong Cation Exchanger Cellulose
EINECS	Contact for details

Quality Control

Our Sulphopropylcellulose is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent performance, including assessment of ion-exchange capacity, particle size distribution, and purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your process requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption, which can affect performance.

Specification

Item	Specification
Appearance	White to off-white powder or beads
Identification (IR)	Conforms to standard
Ion-Exchange Capacity	≥ 1.0 meq/g (dry weight)
Moisture Content	≤ 10.0 %
Ash Content	≤ 5.0 %
Particle Size (Specified Grade)	40 - 120 μm (or as per customer requirement)
pH (in water)	6.0 - 8.0

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