Hangzhou VIWA Co., Ltd.
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   About us

VIWA pharma division is a professional supplier of active pharmaceutical ingredients and intermediates. We are specialized in R&D and custom manufacturing. Supported by our highly qualified team of professor and technicians, we have rich experience on a wide range of chemical reactions and fermentation from multi gram scale to hundred tons scale according to customers' requirement.

Our main products are cardiovascular, anti-diabetes, anti-cancer, steroid, anti-HIV and their intermediates, especially on oncology products.

Moreover, we are quite strong at regulatory issues. Our products have been marketed in USA, Europe, Latin America, India, Vietnam, Turkey, etc.
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Product List  

Carvedilol

Application

Carvedilol

CAS No.

51997-51-4

Structure

Intermediates

4-(2,3-epoxypropoxy) Carbazole


Application

Carvedilol

CAS No.

6 4464-07-9

Structure

Intermediates

2-(2-methoxyphenoxy) ethylamine Hydrochloride


Application

Carvedilol

CAS No.

1836-62-0, 6 4464-07-9

Intermediates

2-(2-methoxyphenoxy) ethylamine (hydrochloride)


Application

Carvedilol

CAS No.

29122-69-8

Intermediates

Tetrahydro-4-oxocarbazole


Application

Carvedilol and Carzolol

CAS No.

52602-39-8

Structure

Intermediates

4-Hydroxycarbazole


Application

Carvedilol

CAS No.

7 2956-09-3

Structure

Acarbose

 

Formula :

C 24 H 26 N 2 O 4


 
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