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  

Clopidogrel

Application

Clopidogrel

CAS No.

5680-79-5

Intermediates

N-[(2-Thienyl)ethyl]-(2s)-2-chloro-phenyl Glycine methyl ester


Application

Clopidogrel Bisulphate

CAS No.

141109-19-5

Intermediates

(+)-Methyl-alpha-(2-Thienylethamino) (2-Chlorophenyl) Acetate Hydrochloride


Application

Clopidogrel Bisulphate

CAS No.

17199-29-0

Structure

Intermediates

S-Mandelic Acid or L-(+)-mandelic acid


Application

Clopidogrel Bisulphate

CAS No.

5402-55-1

Structure

Intermediates

2-Thiophene Ethanol [ Also known as ] : Thiophene-2-ethanol; 2-(2-Thienyl)ethanol; 2-(2-Hydroxyethyl) thiophene


Application

Clopidogrel Bisulphate

CAS No.

30433-91-1

Intermediates

2-Thiophene Ethylamine ; Thiophene-2-Ethylamine; 2-(2-Aminoethyl)thiophene


Application

Clopidogrel Bisulphate

CAS No.

141315-50-6

Structure

Intermediates

(S)-(+)-(o-Chlorophenyl) glycine


Application

Clopidogrel Bisulphate

CAS No.

52950-19-3

Structure

Intermediates

D(+)-2-chloromandelic acid, 99%, C8H7ClO3


Application

Clopidogrel Bisulphate

CAS No.

141196-64-7

Structure

Intermediates

2-Chlorophenylglycine; DL-2-(2-Chlorophenyl)glycine


Application

Clopidogrel Bisulphate

CAS No.

10421-85-9

Intermediates

DL-2-Chloromandelic acid ≥99%


Application

Clopidogrel Bisulphate

CAS No.

52950-18-2

Structure

Intermediates

R(-)-2-chloromandelic acid 99%


Application

Clopidogrel

CAS No.

113665-84-2

Structure

Acarbose

Formula :

C 16 H 16 CLNO 2 S


Application

Clopidogrel Bisulphate

CAS No.

141109-19-5

Structure

Chemical Structure

Intermediates

Clopidogrel ints


 
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