Description

Bio-Rex 70 is a high-capacity, macroporous cation exchange resin widely used for the purification and separation of biomolecules. This product, also known by its CAS number 9015-69-4, is valued for its excellent chemical stability and high binding capacity, making it a critical tool in downstream processing. It is essential for industries requiring high-purity separation, such as pharmaceutical manufacturing, biotechnology research, and fine chemical synthesis.

Application

• Pharmaceutical Purification: Primary application for the purification of antibiotics, peptides, and other active pharmaceutical ingredients (APIs).
• Biomolecule Separation: Critical for the isolation and purification of proteins, enzymes, and nucleic acids in biotechnology and life science research.
• Water Treatment & Demineralization: Used in high-purity water systems for laboratories and industrial processes to remove cationic impurities.
• Catalysis & Chemical Synthesis: Serves as a solid acid catalyst or a support for catalysts in various organic synthesis reactions.
• Food & Beverage Processing: Employed in decolorization, deashing, and the removal of metal ions from sugar syrups, juices, and other food products.
• Analytical Chromatography: Used as a stationary phase in ion-exchange chromatography for analytical and preparative scale separations.

Basic Information

Product Name	Bio-Rex 70
CAS No.	9015-69-4
Molecular Formula	(C8H8)n • (C3H5NO)m
Molecular Weight	N/A (Polymeric Resin)
Synonyms	Amberlite IRC-50; Poly(acrylic acid-co-divinylbenzene); Cation Exchange Resin (Carboxylic Acid Type); Acrylic Acid-Divinylbenzene Copolymer; Weak Acid Cation Exchanger; Carboxylic Cation Exchange Resin; Bio-Rex 70 (H+ Form); Poly(acrylic acid) crosslinked with divinylbenzene
EINECS	Contact for details

Quality Control

Our Bio-Rex 70 is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including total exchange capacity, moisture content, particle size distribution, and purity to ensure consistent performance. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). Keep away from strong oxidizing agents and bases. The resin is supplied in a moist state and should not be allowed to dry out completely.

Specification

Item	Specification
Appearance	Off-white to tan beads
Ionic Form (as shipped)	Hydrogen (H+)
Total Exchange Capacity	≥ 10 meq/g (dry H+ form)
Moisture Content	45 - 55 %
Particle Size Range	100 - 200 mesh (wet)
Crosslinking	8% DVB (nominal)
pH Range (Stable)	5 - 14

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