<https://esschemco.com/product/metabolites-impurities/desmethyl-omeprazole/#product>
<http://schema.org/description>
"CAT#: ESS0244\r\n\r\nCAS#: 151602-49-2\r\n\r\nPurity: 99% by HPLC\r\n\r\nMF: C16H17N3O3S     MW: 331.39\r\n\r\nInventory status: IN STOCK"
<https://esschemco.com/product/metabolites-impurities/desmethyl-omeprazole/>