CAS: 9002-98-6
Molecular Formula: C2H5N
Molecular Weight: 43.07
EINECS: 618-346-1
Synonyms: PEI; ETHYLENEIMINEPOLYMERSOLUTION; polyethyleneimine, branched
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.
| ITEM | STANDARD |
| Appearance | Clear or pale yellow liquid |
| Density(25℃) | 1.00-1.10 |
| DT(℃) | 268-272℃ |
| Flash point | 249℃ |
| Pour point | ≤-13℃ |
| PH(5% aq) | 9.8-12.2 |
| MW | 800±80 |
| Assay | ≥98.0% |

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.
Packed it in 25kgs drum, 50kg drum, 200L drum or IBC drum and keep it away from light at a temperature below 25℃.
