Product Name: Polyethyleneimine (PEI)
CAS Number: 9002-98-6
EC / EINECS No.: 618-346-1
Synonyms: PEI; Polyethyleneimine, branched
Specification: Assay >=98.0%; Density (25 deg C) 1.00-1.10; pH (5% aq) 9.8-12.2; MW 800+-80
Appearance: Clear or pale yellow liquid
Package: 25kgs drum, 50kg drum, 200L drum or IBC drum
Application: Used in papermaking, printing inks, coatings, adhesives, water treatment, electroplating dispersants, epoxy resin systems, aldehyde adsorbents, and dye fixatives
What Is Polyethyleneimine CAS 9002-98-6?
Polyethyleneimine (PEI, CAS Number 9002-98-6) is a water-soluble cationic polymer widely used in industrial applications. It is available in linear and branched structures, typically supplied as a polyethyleneimine solution in various concentrations. PEI is highly reactive due to its dense amine groups, making it suitable for use in adhesives, coatings, water treatment, and as a modifier in paper and textile industries.
As a reliable polyethyleneimine manufacturer, we provide high-quality PEI with competitive polyethyleneimine price and flexible packaging for industrial buyers worldwide.
Specification
| CAS | 9002-98-6 |
| Appearance | Clear or pale yellow liquid |
| Specification: | 300 MW |
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Application
- Used as wet strength agent of non sizing breathable paper, retention agent and beating agent in the process of papermaking, which can reduce the beating degree of pulp. Improve the dewatering capacity of paper. The dryness of the paper is increased by 1% – 4%. The production capacity is increased by 5% – 20%.
- Widely used in the fields of printing ink, coating, adhesive and so on.
- Used in papermaking water treatment, electroplating solution and dispersant.
- Used as epoxy resin reagent, aldehyde adsorbent and dye fixative.

Why Choose Us as Your Polyethyleneimine Supplier?
Professional polyethyleneimine manufacturer with stable production capacity.
Bulk supply with reliable quality and competitive polyethyleneimine price.
Available in polyethyleneimine solution form with customized concentrations.
Flexible packaging: IBC tanks, drums, or bulk containers.
Global logistics support for large-scale industrial buyers.
Package
Packed it in 25kgs drum, 50kg drum, 200L drum or IBC drum and keep it away from light at a temperature below 25℃.
















