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Results for conversion of either structure -> CAS Registry Numbers® or CAS Registry Numbers® -> structure are retrieved from publicly available sources hosted by the U.S. National Institutes of Health (“NIH”) and the Wikimedia Foundation.

Configuration of a proxy

Since these conversions require an internet connection, if might be necessary to configure a proxy in case your environment uses a firewall that blocks it otherwise. This can be done by using the standard Java system properties, such as https.proxyHost and https.proxyPort. The complete list of properties can be found in the Oracle Java documentation for proxies.