Maroon Group - Specialty Intermediates History

Amsyn LLC
Amsyn, LLC

The foundation for Amsyn began with the establishment of Amber Synthetics Incorporated in 1989. Amber Synthetics was initially created to provide custom manufacturing and sourcing services to the pharmaceutical industry.

In 1992, Amber Synthetics was merged together with newly acquired activities in chemical distribution (Alemark Chemical) and R&D Consulting (Custom Synthesis & Development). The operations of Amber Synthetics, Alemark Chemicals and CS&D together became Amsyn Incorporated, a uniquely integrated organization perfectly adapted to meet the full range of development, commercialization and distribution needs of the chemical industry. Amsyn became part of Maroon Group Specialty Intermediates in 2019.

Cadence Chemical

Founded in 2003 by John Wilson in Stamford, CT, Cadence supplies specialty intermediates for the CASE, chemical processing, water treatment and associated industries. Cadence has a fantastic record of strong supplier and customer relationships executed by a dedicated team. Cadence Chemical became part Maroon Group’s Specialty Intermediates business in 2016.


U.S. Chemicals History

U.S. Chemicals was founded by Howard T. Von Oehsen in 1960, as a customer-service based chemical distribution company. His business philosophy was to offer optimal solutions to clients, and his greatest desire was to see his customers’ succeed. This tradition was carried forward by Howard's daughter, Carol Piccaro, who worked for U.S. Chemicals for over 30 years. U.S. Chemicals became part of Maroon Group Specialty Intermediates in 2016.

Specialty Intermediates Timeline


U.S. Chemicals formed by Howard T. Von Oehsen.


U.S. Chemicals imports first containers of products to the U.S.


U.S. Chemicals launches value add services, including micronizing, re-packaging, and toll manufacturing


Amber Synthetics Incorporated formed


Amber Synthetics merges with Alemark Chemical and R&D Consulting and forms Amsyn, LLC

Amsyn LLC


U.S. Chemicals becomes member of NACD and completes Responsible Distribution certification


Cadence Chemical founded by John Wilson


U.S. Chemicals relocates to Darien, CT


Maroon Group acquires U.S. Chemicals & Cadence Chemical


Maroon Group acquires Amsyn, LLC