Shanghai Twochem Lab Supply OLED Intermediate 2, 2′ , 7, 7′ -Tetrabromo-9, 9′ -Spirobifluorene 128055-74-3

• Customization: Available
• CAS No.: 128055-74-3
• Formula: C25h12br4
• Model NO.: TAPI-253
• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Industrial
• Colour: White
• Grade Standard: Pharmaceutical Grade
• Shelf Life: 2 Years Proper Storage
• Color: White Powder
• Storage: Cool Dry Place
• Model: Tapi-253
• Application: Functional Ingridents
• CAS: 128055-74-3
• Test: HPLC
• Assay: 99%
• Sample: Avaliable
• MW: 631.98
• Transport Package: Standard Packaging or Customized to Your Needs
• Specification: 1KG 5KG 25KG 50KG
• Trademark: Twochem
• Origin: Zhejiang Province
• HS Code: 2930909099
• Production Capacity: 5000kg/Year

Product Description

 

 

Our Advantages

1.Free Samples.
2.MOQ:500g.
3.More than 3000 kinds of animal drugs.
4.More than 11+ manufacturing experience.
5.Certification:MSDS,HALAL,COA,IFRA,ISO9001, ISO22000,26 Allergens, etc.
6.Lead time:about 8-12 working days.
8.Verified by Made-in-China as Golden Supplier.



 

Product Description

 

 

What is 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene CAS 128055-74-3 ? 
 

2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene is a spirobifluorene (SBF) derivative and is used as a blue-emitting material in electroluminescent devices. The spirobifluorene linkage in the molecule helps in decreasing the crystallization tendency and also increases the colour stability by preventing the formation of aggregates or excimers. They possess high photoluminescence efficiency and good chemical stability.

 

 

 

Function of  2,2',7,7'-Tetrabromo-9,9'-spirobifluorene CAS 128055-74-3

 

1.2,2',7,7'-Tetrabromo-9,9'-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.
2.2,2'',7,7''-Tetrabromo-9,9''-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.
3.Blue light emitting material in Organic Light Emitting Diodes (OLEDs).

 

Application

 

 

 

 

Company Profile

 

 

 

 

ShangHai Twochem is one of professional groups specialized in research, development, custom manufacturing and trading of pharmaceutical API, advanced intermediates, food supplements, hookah additive flavors ,Cosmetic raw materials, health and cosmetic raw materials, polypeptides, animal drug and organic reagent  etc. You can select more than 2000 kinds of raw ingredients here. And we are keeping developing new products and continuously marketing them for sale. You will save lots of time , energy, money and have a very pleasant cooperation with us! We have cooperated with local Medicine Inspection Center as our QC center. We have customer manufacture sites managed under GMP guidline in Anhui and Jiangsu Province, China. We have good relationship with many pharmaceutical research Institute and Universities in China. 

 

Factory display

 

 

Q&A

1.How could l get a sample?
Before we received the first order, please afford the sample cost and express fee. We wilreturn  the sample cost back to you within your first order.

2.Can you make designs for us?
We have a professional design team to help our customers do design work.Both OEM and ODM          orders are accepted.

3.Can we get samples from your factory?
We can provide you samples for free, you just pay express cost.

4.Whether you could make our brand on your products?
Yes. We can print your Logo on both the products and the packages if you can meet our MOQ
How can you provide us high quality products?

5.We have a professional QC team, every product is shipped after strictly examination.
What is your lead time?
Quantity about 10000 pcs is 15-20 days ,small orders are about one week.
Huge orders to be neqotiated.

6.What is your payment?
We accept T/T.L/C.Westem union or to be negotiated.Don't worry about anything, if you have      any problems, please feel free to contact us