{"product_id":"milliporesigma-hepes-free-acid-1pc-x-5kg-5340-5kg","title":"MilliporeSigma HEPES, Free Acid 1PC x 5KG - 5340-5KG","description":"HEPES, Free Acid 1PC x 5KG - 5340-5KG\u003cbr\u003e A zwitterionic N-substituted aminosulfonic acid buffer. HEPES has its maximum buffering capacity very near the pH of mammalian tissue fluids (pKa of 7.31 at 37°C). Exhibits no metal binding and has a small temperature dependent ?pKa of -0.014\/°C.","brand":"MilliporeSigma","offers":[{"title":"Default Title","offer_id":45078854205609,"sku":"5340-5KG","price":3570.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5452\/9953\/files\/sigma-general-xxx_e03329e7-a7a0-406a-8112-1357223e7cde.jpg?v=1736384668","url":"https:\/\/labproinc.myshopify.com\/products\/milliporesigma-hepes-free-acid-1pc-x-5kg-5340-5kg","provider":"Lab Pro Inc","version":"1.0","type":"link"}