Rebaudioside A

Rebaudioside A
Names
	IUPAC name β-D-Glucopyranosyl 13-{β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyloxy}-5β,8α,9β,10α,13α-kaur-16-en-18-oate
	Systematic IUPAC name (2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)oxan-2-yl (4R,4aS,6aR,9S,11aR,11bS)-9-{[(2S,3R,4S,5R,6R)-5-hydroxy-6-(hydroxymethyl)-3,4-bis{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxan-2-yl]oxy}-4,11b-dimethyl-8-methylidenetetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate
Identifiers
CAS Number	58543-16-1;
3D model ( JSmol)	Interactive image;
ChEBI	CHEBI:145012;
ChEMBL	ChEMBLCHEMBL430341;
ChemSpider	5294031;
ECHA InfoCard	100.121.892
PubChem CID	124378;
UNII	B3FUD0528F ;
CompTox Dashboard (EPA)	DTXSID8047898 ;
	SMILES [C@]123[C@]([C@]4([C@@]([C@](CCC4)(C)C(O[C@@H]5O[C@@H]([C@@H](O)[C@@H]([C@H]5O)O)CO)=O)(CC1)[H])C)(CC[C@@](C2)(O[C@H]6[C@H](O[C@@H]7O[C@@H]([C@@H](O)[C@@H]([C@H]7O)O)CO)[C@H]([C@H](O)[C@H](O6)CO)O[C@@H]8O[C@@H]([C@@H](O)[C@@H]([C@H]8O)O)CO)C(C3)=C)[H];
Properties
Chemical formula	C44H70O23
Molar mass	967.01 g/mol
Appearance	white powder
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Rebaudioside A (sometimes shortened to "Reb A") is a steviol glycoside from the leaves of Stevia rebaudiana that is 240 times sweeter than sugar.^[2] Rebaudioside A is the sweetest and most stable steviol glycoside, and is less bitter than stevioside.^[3] Stevia leaves contain 9.1% stevioside and 3.8% rebaudioside A.^[3]

The glycoside contains only

carboxyl group forming an ester

bond.