المصدر: chemspider - free chemical database في منتدى : قسم البرامج العلمية ChemSpider is a free chemical structure database providing fast text and structure search access to over 28 million structures from hundreds of data sources. Search by chemical names Systematic names Synonyms Trade names Database identifiers Search by chemical structure Create structure-based queries Draw structures in the web page Use structure files from your computer Find important data Literature references Physical properties Interactive spectra Chemical suppliers
