About Us

Hangzhou Keying Chem Co., Ltd. Is a comprehensive enterprise, dedicated to the development, production and marketing of chemicals. As a technology innovative and service professional enterprise, Our company mainly engages in global pharmaceutical, chemical and biological service.

The products includes fine chemicals, food / feed additives, APIs, pesticides, dyes and pharmaceutical .

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Custom Synthesis

Keyingchem are also dedicated to provide Custom Synthesis and Contract Research services to industrial and academic entities on a short or long-term basis.

We prides on our excellent team of well-known engineers, technological persons and young professional staffs to research and develop new process. In our lab. and pilot-plant, compounds can be manufactured in the quantity from a few grams up to hundreds of kilos and beyond .

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Superior products

Tiamulin fumarate

55297-96-6

Tiamulin fumarate

N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt

66992-27-6

N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid sodium salt

3-Pyridylboronic acid

1692-25-7

3-Pyridylboronic acid