ASPARTAME-ACESULFAME SALT
Revised specifications prepared at the 65th JECFA (2005) and published in FNP 52 Add 13 (2005), superseding specifications prepared at the 55th JECFA (2000) and published in FNP 52 Add 8 (2000). The ADIs for aspartame (0-40 mg/kg bw) established at the 25th JECFA (1981) and
for acesulfame K (0-15 mg/kg bw) established at the 37th JECFA (1990) cover the aspartame and acesulfame moieties of the salt.
SYNONYMS Aspartame-acesulfame, INS No. 962
DEFINITION The salt is prepared by heating an approximately 2:1 ratio (w:w) of aspartame and acesulfame K in solution at acidic pH and allowing
crystallization to occur. The potassium and moisture are eliminated. The product is more stable than aspartame alone.
Chemical names 6-methyl-1,2,3-oxathiazine-4(3H)-one-2,2-dioxide salt of L-phenylalanyl-2-methyl-L-α-aspartic acid. [2-carboxy-β-(N-(b-methoxycarbonyl-2-phenyl)ethylcarbamoyl)]ethanaminium-6-methyl-4-oxo-1,2,3-oxathiazin-3-ide-2,2-dioxide.
C.A.S. number 106372-55-8
Chemical formula C18H23O9N3S
Formula weight 457.46
Assay 63.0% to 66.0% aspartame (dried basis) and 34.0% to 37.0%
acesulfame (acid form on a dried basis).
DESCRIPTION A white, odourless, crystalline powder
FUNCTIONAL USES Sweetening agent, flavour enhancer
