Shanghai Twochem Factory Supply 99% Purity Good Price 4-Chloro-7h-Pyrrolo[2, 3-D]Pyrimidine / 4- Chloropyrrolopyrimidine CAS 3680-69-1

• Customization: Available
• CAS No.: 3680-69-1
• Formula: C6h4cln3
• Model NO.: TAPI-251
• 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-251
• Application: Functional Ingridents
• CAS: 3680-69-1
• Test: HPLC
• Assay: 99%
• Sample: Avaliable
• MW: 153.57
• 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 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine CAS 628-079-2 ? 

 

The preparation process of pyrimidine includes the first α -alkylation reaction between diethyl malonate and allyl bromid e, and the subsequent cyclization reaction with amidine to obtain a six-membered ring of bislactam. The chlorination of carbonyl with phosphorus oxychlorid e to obtain dichloro pyrimidine ring, followed by the oxidation of the terminal double bond with potassium osmate hydrate and sodiu m periodat e to obtain the aldehyde group. The final reaction with ammoni a water to produce SNAr/cyclization reaction, a five-step reaction, total yield of 45.8% to obtain 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine.

 

 

Function of 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine CAS 628-079-2
 

4-Chloro-7H-pyrrolo[2,3-d] pyrimidine is an important pharmaceutical intermediate, which is widely used in the synthesis of many pharmaceutical intermediates at home and abroad. Including CP690550, CGP76030 and so on, 4-Chloro-7H-pyrrolo[2,3-d] pyrimidine was the scaffold for many commercially available drugs. Also, 4-Chloro-7H-pyrrolo[2,3-d] pyrimidine was the intermediate of the bulk drug, Tofatinib, which was widely used in treatment of adult patients with moderate to severe rheumatoid arthritis with inadequate or intolerant methotrexat e response.
 

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