lkoval 3-13-20

Scripts to downlod the web pages as pdfs and extract chemical names and cas numbers from the fl@vis flavoring substances list.

The download script was written in Python 3.6 with selenium 3.141.0 and ChromeDriver 80.0.3987.106. All 111 pages were saved as pdfs using wkhtmltopdf 0.12.5 for Win64 and pdfkit 0.6.1. All individual pdfs were joined into a single file with pypdf2 1.26.0.

For computational simplicity, the extraction script reads the excel file downloaded from fl@vis website. The script was written in Python 3.7.3 utilizing pandas 0.24.1.