3,3′,4,4′-Benzophenonetetracarboxylic dianhydride
2421-28-5

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2421-28-5

3,3',4,4'-Benzophenonetetracarboxylic dianhydride paramete


CAS No.: 2421-28-5
MF: C17H6O7, C17H6O7
Place of Origin: Shandong, China
Purity: 99%min
Model Number: CAS 21054-72-8
Appearance: Yellow powder, Yellow powder
CAS: 2421-28-5
Storage: Normal termperature
Sample: Available
Assay: 99%min
Other Names: BTDA
EINECS No.: 219-348-1
Type: Pharmaceutical Intermediates
Brand Name: Look chemical
Application: Intermediate
NAME: 3,3',4,4'-Benzophenonetetracarboxylic dianhydride
MW: 322.23
Stock: Enough
Packing: 1kg/bag,25kg/drum or as your requirements

Specification


 

ITEMS

SPECIFICATIONS

RESULTS
Appearance White crystalline powder conform
Purity/Assay 98.0%min 99.3%
Molecular Weight 322.23

conform

Application


Polymeric monomer, used for synthesis of high temperature resistant polymer materials.

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

Service


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.

FAQ

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.

Warning

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Storage

Store in a tightly closed container. Store protected from moisture. Store under nitrogen. Store in a cool, dry area away from incompatible substances.

Shipping

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

1kg/bag,25kg/drum or as your requirements

Packing can be conducted according to customers' requirements.


Delivery detail

   [Delivery] 5 working days after payment.

3,3',4,4'-Benzophenonetetracarboxylic dianhydride picture

2421-28-5

Packaging and shipping

Honor Certificate

Professional team

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