Record Information
Creation date2018-05-02 11:58:23 UTC
Update date2018-05-04 14:25:53 UTC
FoodComEx IDPC001171
FoodDB RecordFDB012173
Chemical Information
NameAcesulfame K
DescriptionADI 15 mg/kg (1991). Intense-type sweetener permitted at 300-5500 ppm in foods. Sweetness approx. 200 x sucrose Acesulfame potassium is a calorie-free artificial sweetener, also known as Acesulfame K or Ace K (K being the symbol for potassium), and marketed under the trade names Sunett and Sweet One. In the European Union, it is known under the E number (additive code) E950. It was discovered accidentally in 1967 by German chemist Karl Clauss at Hoechst AG (now Nutrinova). In chemical structure, acesulfame potassium is the potassium salt of 6-methyl-1,2,3- oxathiazine-4(3H)-one 2,2-dioxide. It is a white crystalline powder with molecular formula C4H4KNO4S and a molecular weight of 201.24.
CAS Number55589-62-3
Acesulfame Kdb_source
Acesulfame potassiumbiospider
H 733293db_source
Hoe 095Kdb_source
Chemical FormulaC4H5KNO4S
IUPAC namepotassium 6-methyl-3,4-dihydro-1,2λ⁶,3-oxathiazine-2,2,4-trione
InChI IdentifierInChI=1S/C4H5NO4S.K/c1-3-2-4(6)5-10(7,8)9-3;/h2H,1H3,(H,5,6);/q;+1
Isomeric SMILES[K+].CC1=CC(=O)NS(=O)(=O)O1
Average Molecular Weight202.25
Monoisotopic Molecular Weight201.957635204
Chemical Taxonomy
Description Belongs to the class of organic compounds known as organic sulfuric acids and derivatives. These are organic compounds containing the sulfuric acid or a derivative thereof.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassOrganic sulfuric acids and derivatives
Sub ClassNot Available
Direct ParentOrganic sulfuric acids and derivatives
Alternative Parents
  • Organic sulfuric acid or derivatives
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Organic alkali metal salt
  • Azacycle
  • Oxacycle
  • Carbonyl group
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic potassium salt
  • Organopnictogen compound
  • Organic salt
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic cation
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External DescriptorsNot Available
Physico-Chemical Properties - Experimental
Experimental logPNot Available
Experimental Water SolubilityNot Available
Melting PointMp 225 dec. (on slow heating)DFC
Foods of Origin
FoodContent Range AverageReference
Production Data
Production Methodcommercial
Production Method ReferenceNot Available
Production Method Reference FileNot Available
Quantity Available1 to 2 mg
Delivery Time2 weeks
Storage Formpowder
Storage Conditions-18°C
StabilityNot Available
Spectral Data Upon RequestNot Available
Provider Information
Contact NameContact InstitutionContact Email
Augustin ScalbertInternational Agency for Research on Cancer (IARC), Biomarkers Group, 150 cours Albert Thomas, Lyon, FR,
Commercial Vendors
AKSci E774
AKSci J10221
Fluka HMDB0033585
Glentham GW2990
MetaSci HMDB0033585
Toronto Research Chemicals A132500