Cyclopentanone CAS 120-92-3
Antioxidant 3114
Antioxidant 3114 CAS 27676-62-6


Polyethyleneimine (Polyethylenimine, PEI), also known as polyaziridine, is a water-soluble polymer.

This item is a colorless and very thick fluid. Soluble in water, ethanol, hygroscopic, insoluble in benzene, acetone. Any type of sort of experience with sulfuric acid with a pH below 2.4 will cause rainfall. The liquid remedy is favorably charged, as well as the enhancement of formaldehyde generates coagulation.

Polyethyleneimine is separated into 2 kinds: direct and also branched. Direct polyethyleneimine includes all secondary amines, while branched polyethyleneimine has primary, extra in addition to tertiary amine groups. Straight polyethyleneimine of any sort of molecular weight is solid at area temperature level, while branched polyethyleneimine is fluid.

Straight PEI is soluble in warm water or low pH methanol, ethanol or chloroform, yet insoluble in stylish water, benzene, ether as well as also acetone. One end of the polymer chain is a methyl team along with in addition the various other end is an amino group.


CAS No.: 9002-98-6
Place of Origin: Shandong, China
Purity: 99
Model Number: 9002-98-6
Appearance: liquid
CAS: 9002-98-6
BP: 250 °C(lit.)
FP: >230 °F
Sample: Avaliable
COA: Avaliable
EINECS No.: 205-793-9
Type: Dyestuff Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates
Brand Name: look chemical
Application: organic intermediate
MP: 59-60°C
Density: 1.030 g/mL at 25 °C
Shelf life: 2 Years
MOQ: 1 Kg


1.As a wet strength agent for unsized respiratory paper, retention aid and pulping agent in the paper making process can reduce the pulping degree of the pulp. Improve paper dehydration ability. Make paper dry degree increase 1% ~ 4%. Increase production capacity by 5% ~ 20%.

2.Highly adherent and adsorptive amino groups react with carboxyl groups to form hydrogen bonds. The amino group can react with the carboxyl group to form ionic bonds. Amino can react with carbacyl to form covalent bonds. Polyethylenimines are capable of binding to different substances due to their polar Chemicalbook group (amino) and hydrophobic group (vinyl) structure. The use of these comprehensive binding force, can be widely used in the next, ink, paint, binder and other fields.

3.High cationicity Polyethylenimine exists in water as polymeric cation, which can neutralize and adsorb all anionic substances and chelate heavy metal ions. It can be used in papermaking water treatment, electroplating solution and dispersant.

4.reactive Polyethylenimines can easily react with epoxies, acids, isocyanates and acidic gases due to their highly reactive primary and secondary amines. This property can be used as epoxy resin reactant, aldehyde adsorbent and dye fixator.

5.Under certain conditions, polyethyleneimine strong material can absorb a big quantity of carbon dioxide in damp air, and also the separation procedure is likewise very convenient. Co2 can be completely sequestered in polyethyleneimine strong products, or it can be drawn out for various other fields.

6.The material can be reused and continues to be as high absorptive as ever. Polyethylenimine also has solid bond capacity as well as can successfully make cells attach.


CAS No 9002-98-6
Appearance Colorless viscous liquid
Specifications Melting point :59-60°C

Boiling point: 250 °C(lit.)

Density: 1.030 g/mL at 25 °C

Flash point >230 °F

Storage: 2-8°C



Product service

1. Certificate Of Analysis (COA)

2. Material Safety Data Sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of Aanlysis (MOA)

5. Nuclear Magnetic Resonance (NMR)

6. Packing pictures and loading video before loading

7. Free Sample

8. Factory audit


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Q1: Do you accept sample order?
A:  We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
Q2:  What is our advantage?
A : The series of natural extracted product are all self-developed, produced and tested. Mature production technology, strict cost control, and perfect quality assurance system, ensure the product stability and competitive price.
Q3: What’s your MOQ?
A :  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: Do you supply product report?
A : Yes. We'll give you product analysis report before shipping.
 Q5: Is there a discount?
A :  Different quantity has different discount.
Q6: Can we visit your factory?
A :  Yes. Welcome to visit.
Q7: How to confirm the Product Quality before placing orders?
A :  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.



Packing can be conducted according to customers' requirements.

Delivery detail

   [Delivery] 5 working days after payment.


Packaging and shipping

Honor Certificate

Professional team