{{Chembox | Watchedfields = changed | verifiedrevid = 423304146 | ImageFile = Potassium ascorbate.png | ImageClass = skin-invert-image | ImageSize = 200px | PIN = Potassium (2''R'')-2-[(1''S'')-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2,5-dihydrofuran-3-olate | OtherNames = Monopotassium ascorbate; Potassium <small>L</small>-ascorbate |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 15421-15-5 | ChemSpiderID = 30647045 | UNII_Ref = {{fdacite|correct|FDA}} | UNII = X5523762RI | PubChem = 23687519 | StdInChI=1S/C6H8O6.K/c7-1-2(8)5-3(9)4(10)6(11)12-5;/h2,5,7-10H,1H2;/q;+1/p-1/t2-,5+;/m0./s1 | StdInChIKey = CONVKSGEGAVTMB-RXSVEWSESA-M | SMILES = OC1=C([O-])[C@]([C@@H](O)CO)([H])OC1=O.[K+] }} |Section2={{Chembox Properties | C=6 | H=7 | K=1 | O=6 | Appearance = | Density = | MeltingPt = | BoilingPt = | Solubility = 98g/100mL<ref>{{cite book |last=Burdoch |first=George A. |title=Encyclopedia of food and color additives |year=1997 |publisher=CRC Press |location=Boca Raton, Florida |isbn=0-8493-9412-0 |url=https://books.google.com/books?id=5BZ39iL0XfQC&pg=PA207 |accessdate=2012-09-30 |page=207}}</ref>}} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} }}

'''Potassium ascorbate''' is a compound with formula KC<sub>6</sub>H<sub>7</sub>O<sub>6</sub>. It is the potassium salt of ascorbic acid (vitamin C) and a mineral ascorbate. As a food additive, it has E number E303, INS number 303. Although it is not a permitted food additive in the UK, the USA and the EU,<ref>UK Food Standards Agency: {{cite web |url=http://www.food.gov.uk/safereating/chemsafe/additivesbranch/enumberlist |title=Current EU approved additives and their E Numbers |accessdate=2011-10-27}}</ref><ref>{{Cite web|last=Noshly|title=Wise Eating, Made Easy|url=http://noshly.com/|access-date=2022-02-06|website=Noshly|language=en}}</ref> it is approved for use in Australia and New Zealand.<ref>Australia New Zealand Food Standards Code{{cite web |url=http://www.comlaw.gov.au/Details/F2011C00827 |title=Standard 1.2.4 - Labelling of ingredients |date=8 September 2011 |accessdate=2011-10-27}}</ref> According to some studies, it has shown a strong antioxidant activity and antitumoral properties.<ref>{{Cite journal|last1=Frajese|first1=Giovanni Vanni|last2=Benvenuto|first2=Monica|last3=Fantini|first3=Massimo|last4=Ambrosin|first4=ELENA|last5=Sacchetti|first5=Pamela|last6=Masuelli|first6=Laura|last7=Giganti|first7=Maria Gabriella|last8=Modesti|first8=Andrea|last9=Bei|first9=Roberto|date=June 2016|title=Potassium increases the antitumor effects of ascorbic acid in breast cancer cell lines in vitro|journal=Oncology Letters|volume=11|issue=6|pages=4224–4234|doi=10.3892/ol.2016.4506|issn=1792-1074|pmc=4888082|pmid=27313770}}</ref><ref>{{Cite journal|last1=Cavicchio|first1=Carlotta|last2=Benedusi|first2=Mascia|last3=Pambianchi|first3=Erika|last4=Pecorelli|first4=Alessandra|last5=Cervellati|first5=Franco|last6=Savelli|first6=Vinno|last7=Calamandrei|first7=Duccio|last8=Maellaro|first8=Emilia|last9=Rispoli|first9=Giorgio|last10=Maioli|first10=Emanuela|last11=Valacchi|first11=Giuseppe|date=2017|title=Potassium Ascorbate with Ribose: Promising Therapeutic Approach for Melanoma Treatment|journal=Oxidative Medicine and Cellular Longevity|volume=2017|article-number=4256519|doi=10.1155/2017/4256519|issn=1942-0900|pmc=5632911|pmid=29290903|doi-access=free}}</ref><ref>{{Cite journal|last1=Anichini|first1=C.|last2=Lotti|first2=F.|last3=Longini|first3=M.|last4=Proietti|first4=F.|last5=Felici|first5=C.|last6=Perrone|first6=S.|last7=Buonocore|first7=G.|date=2012|title=Antioxidant effects of potassium ascorbate with ribose therapy in a case with Prader Willi Syndrome|journal=Disease Markers|volume=33|issue=4|pages=179–183|doi=10.3233/DMA-2012-0922|issn=1875-8630|pmc=3810693|pmid=22960339}}</ref>

== References == {{Reflist}}

{{DEFAULTSORT:Potassium Ascorbate}} Category:Ascorbates Category:Potassium compounds Category:Food additives Category:E-number additives

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