EXHIBIT 21.1

SUBSIDIARIES OF THE REGISTRANT

1.	Molecular Devices GmbH, a company organized under the Laws of Germany.
2.	Molecular Devices Ltd., a company organized under the Laws of England and Wales.
3.	Skatron Instruments AS, a company organized under the Laws of Norway.
4.	Nihon Molecular Devices Corporation Ltd., a corporation organized under the Laws of Japan.
5.	Cytion S.A., a corporation organized under the Laws of Switzerland.
6.	LJL BioSystems, Ltd., a company organized under the Laws of England and Wales.
7.	Universal Imaging Corporation, a corporation organized under the Laws of Pennsylvania.
8.	Astros Acquisition Sub II, LLC, a limited liability company organized under the Laws of the State of California.
9.	Molecular Devices Korea, LLC, a limited liability company organized under the Laws of the Republic of Korea.
10.	Molecular Devices PTY Limited (formerly Axon Research Pty. Ltd.) a company organized under the Laws of the State of Victoria, Australia.
11.	Molecular Devices Instrumentacao Cientifica do Brasil Ltda, a company organized under the Laws of Brazil.
12.	Molecular Devices Shanghai Limited, a company organized under the laws of the People’s Republic of China.
13.	Molecular Devices Limited, a company organized under the laws of Hong Kong.
14.	Molecular Devices International, Inc., a corporation organized under the laws of the State of Delaware.
15.	Molecular Devices India Private Limited, a company organized under the laws of India.