Acesulfame-K

Acesulfame potassium

Names
IUPAC name Potassium 6-methyl-2,2-dioxo-2H-1,2λ6,3-oxathiazin-4-olate
Other names Acesulfame K; Ace K
Identifiers
CAS Number	55589-62-3 Y
3D model (JSmol)	Interactive image
ChemSpider	55940 N
ECHA InfoCard	100.054.269
EC Number	259-715-3
E number	E950 (glazing agents, ...)
PubChem CID	23683747
UNII	23OV73Q5G9 Y
InChI InChI=1S/C4H5NO4S.K/c1-3-2-4(6)5-10(7,8)9-3;/h2H,1H3,(H,5,6);/q;+1/p-1 N Key: WBZFUFAFFUEMEI-UHFFFAOYSA-M N InChI=1/C4H5NO4S.K/c1-3-2-4(6)5-10(7,8)9-3;/h2H,1H3,(H,5,6);/q;+1/p-1 Key: WBZFUFAFFUEMEI-REWHXWOFAT
SMILES [K+].C\C1=C\C(=O)[N-]S(=O)(=O)O1
Properties
Chemical formula	C4H4KNO4S
Molar mass	201.242
Appearance	white crystalline powder
Density	1.81 g/cm3
Melting point	225 °C (437 °F; 498 K)
Solubility in water	270 g/L at 20 °C
Hazards
NFPA 704	1 1 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Acesulfame potassium (/ˌeɪsiːˈsʌlfeɪm/ AY-see-SUL-faym), also known as acesulfame K (K is the symbol for potassium) or Ace K, is a calorie-free sugar substitute (artificial sweetener) often 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 C
4H
4KNO
4S and a molecular weight of 201.24 g/mol.

Acesulfame K is 200 times sweeter than sucrose (common sugar), as sweet as aspartame, about two-thirds as sweet as saccharin, and one-third as sweet as sucralose. Like saccharin, it has a slightly bitter aftertaste, especially at high concentrations. Kraft Foods patented the use of sodium ferulate to mask acesulfame's aftertaste. Acesulfame K is often blended with other sweeteners (usually sucralose or aspartame). These blends are reputed to give a more sucrose-like taste whereby each sweetener masks the other's aftertaste, or exhibits a synergistic effect by which the blend is sweeter than its components. Acesulfame potassium has a smaller particle size than sucrose, allowing for its mixtures with other sweeteners to be more uniform.