produced by the Canadian Intellectual Property Office. Images and patent citation from Jan 1st 1920. Abstracts and Claims are included after August 15th 1978.
ChemSpider is a free chemical structure database providing fast access to over 67 million structures, properties, and associated information. Can search by text or chemical structure.
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Umbrella organization for the Canadian Society for Chemistry, the Canadian Society for Chemical Engineering, and the Canadian Society for Chemical Technology