Chem-Stone(Guangzhou)Co.,Ltd

Chem-Stone, Inc. is an innovative synthesis-based company specializing in the process R&D of API (both generic and NCE), manufacturing and marketing of key API intermediates for pharmaceutical and biotech companies around the world.

 Chem-Stone’s expert team of scientists and professions totals has over 50 years of drug discovery and development experience at Merck, Roche and Genentech companies. The R&D team at Chem-Stone consists of experienced masters and bachelor chemists alongside veteran Ph.Ds chemists. Currently, the main R&D center in Guangzhou, China occupies 16,000 square feet of lab space equipped with 34 fume hoods, 8 walk-in kilo hoods and QC/QA lab.

We have a production site of 10,000 square meters. This plant has equipped with four 3000L-reactors, six 1000L-reactors, six 500L-reactors and multiple 100L-reactors. We are well experienced at various types of asymmetric synthesis at low temperature and hydrogenation at high pressure.

Chem-Stone focus on the production of intermediates for gadolinium series contrast agent and anti-virus series , and offer CMO/CDMO services for pharmaceutical intermediates.

 Our strengths include an effective problem solving team, open communication channels, competitive pricing and prompt delivery of results.

 We have a production site of 10,000 square meters. This plant has equipped with four 3000L-reactors, six 1000L-reactors, six 500L-reactors and multiple 100L-reactors. We are well experienced at various types of asymmetric synthesis at low temperature and hydrogenation at high pressure.

 Chem-Stone chemists are skilled in the latest methods of synthetic chemistry. Our sevices include custom synthesis and manufacturing of key API intermediates. Our featured product lines include 1-F-cyclopropanes, oxetanes, azepanes, pyrrolidines and hard-to-find heterocyclic boronic acids which are all in stock in tens gram to kilogram quantities.

 Our strengths include an effective problem solving team, open communication channels, competitive pricing and prompt delivery of results.