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  

Donepezil

Application

Donepezil

CAS No.

2107-69-9

Structure

Intermediates

5,6-Dimethoxy-1-indanone


Application

Donepezil

CAS No.

120014-30-4

Structure

Intermediates

5,6-Dimethoxy-2-(pyridin-4-yl)methyleneindan-1-one


Application

Donepezil

Intermediates

5,6-DIMETHOXY-2-(PYRIDIN-4-YL)METHYLENE INDAN-1-ONE


Application

Donepezil

CAS No.

12 0014-06-4

Structure

Acarbose


 
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