{"product_id":"formedium-mes-monohydrate","title":"MES Monohydrate","description":"\u003c!----\u003e\u003cdiv class=\"beae-des-content\"\u003e\n\u003cp\u003e\u003cspan\u003e2-(N-Morpholino) Ethanesulfonic acid C6H13NO4S·H2O=213.2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMES, 2-(N-morpholino)ethanesulfonic acid contains a morpholine ring. Its molecular weight is 195.2 and the chemical formula is C6H13NO4S.\u003c\/p\u003e\n\u003cp\u003eMES is used as a buffering agent in biology and biochemistry. It has pKa value of 6.15 at 20 °C. The pH (and pKa at ionic strength I≠0) of the buffer solution changes with concentration and temperature.\u003c\/p\u003e\n\u003cp\u003eMES is highly soluble in water. MES was developed as one of Good's buffers in the 1960s. These buffers were developed with the following criteria in mind: midrange pKa, maximum water solubility and minimum solubility in all other solvents, minimal salt effects, minimal change in pKa with temperature, chemically and enzymatically stable, minimal absorption in visible or UV spectral range and reasonably easily synthesized.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e\n\u003ch6\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/h6\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003eWhite Crystalline Powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eAssay (Titration)\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e≥99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eWater Content\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e8.0-8.9%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003epH 1% Di HB2BO\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e3.5-4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eSolubility 0.1M water Clear\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003eColourless Solution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eResidue On Ignition\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e≤0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eAB280B, 0.5M water\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e≤0.020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eAB260B, 0.5M water\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e≤0.025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003epKa 25\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e5.9-6.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.4938%;\"\u003eHeavy metals (Pb)\u003c\/td\u003e\n\u003ctd style=\"width: 48.1547%;\"\u003e≤5ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eStore dry at room temperature \u003c\/p\u003e\n\u003cp\u003eSoluble in water\u003c\/p\u003e\n\u003cp\u003eCAS 145224-94-8\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Formedium","offers":[{"title":"6 x 1kg","offer_id":51824832675876,"sku":"MES05","price":2896.92,"currency_code":"USD","in_stock":true},{"title":"1000g","offer_id":51824832708644,"sku":"MES04","price":536.5,"currency_code":"USD","in_stock":true},{"title":"500g","offer_id":51824832741412,"sku":"MES03","price":295.15,"currency_code":"USD","in_stock":true},{"title":"250g","offer_id":51824832774180,"sku":"MES02","price":161.02,"currency_code":"USD","in_stock":true},{"title":"100g","offer_id":51824832806948,"sku":"MES01","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/9868\/5732\/files\/formedium-mes-monohydrate-1_1d5aa5a5-d0a1-414b-bb32-8150ba5a4131.jpg?v=1790072284","url":"https:\/\/vareum.com\/products\/formedium-mes-monohydrate","provider":"Vareum","version":"1.0","type":"link"}