Tetraethylammonium bromide CAS 71-91-0


CAS No.: 620-92-8
MF: C13H12O2
Brand Name: Lookchemical
Purity: 99%Min
Biphenol content %: ≥85
Ash content ppm: ≤1000
Other Names: 4,4'-Dihydroxydiphenylmethane
EINECS No.: not available
Type: Synthetic Resin And Plastics
Model Number: 620-92-8
Phenol content ppm: ≤1000
Color and luster (Gardener): ≤5


Applicable to processing film, electronic color separation film, laser phototypesetting film, bright room copy film

It has many applications: 1. It is used to manufacture textile printing and dyeing auxiliaries 2. It is used to manufacture thermal sensitive materials 3. It is used to manufacture high-performance epoxy resins 4


Test items



White to off-white solid

BPF content


Free phenol




Melting point


Color (Gardner)



Pre-Sales Service

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

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

* Sample testing support.

*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

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

*The fact of logistics information monitoring.

*Product has any problem can return.


Secure and discreet shipment. You have various choices of transportation methods.

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.


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 information should I let you know if I want to get a quotation
A :  Quality you require, eg. Assay, Purity, or single impurity -Quantity you need -Standard you want, such as USP, EP, JP etc.
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: When will you deliver the goods
A :  For sample(less than 1kg), in about 3 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.
Q6: 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.


Packaging and shipping