Flavor ingredient regulatory record

Rebaudioside A

Rebaudioside A is a glycoside in the sweet family, FEMA GRAS under FEMA number 4601 (CAS 58543-16-1). Its odor is sweet, fruity, herbal, green.

FEMA
4601
CAS
58543-16-1
EU FL
16.113
Formula
C44H70O23
EC
611-696-6

GRAS status: FEMA GRAS, publication 24. Recorded by FDA in the Substances Added to Food inventory under CAS 58543-16-1.

Structure

2D structure of Rebaudioside A
Structure of Rebaudioside A, C44H70O23. Drawn from the canonical SMILES.

Identity

IUPAC name [(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] (1R,4S,5R,9S,10R,13S)-13-[(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-5,9-dimethyl-14-methylidenetetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylate
CAS number 58543-16-1
FEMA number 4601
Molecular formula C44H70O23
Molecular weight 967.02 g/mol
SMILES C=C1C[C@@]23CC[C@H]4[C@@](C)(CCC[C@@]4(C)C(=O)O[C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)[C@@H]2CC[C@]1(O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)[C@H]1O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O)C3
InChIKey HELXLJCILKEWJH-NCGAPWICSA-N
PubChem CID 6918840
EC number 611-696-6
FDA UNII B3FUD0528F
EPA DTXSID DTXSID8047898
Chemical class Glycoside

Also known as: Kaur-16-en-18-oic acid, 13-[(O-β-D-glucopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl)oxy]-, β-D-glucopyranosyl ester, (4α)-, Glycoside X, Glycoside A3, from Steviarebaudiana, 4G-S, Sweetener 4G-S, Stevioside a3, Sooolite!-Pure, Rebiana, Pure Via, Reb-A 97, RA 95, Rebaudiana a.

Can Rebaudioside A be labeled natural?

Nature makes Rebaudioside A, which is why the US label turns on process. A natural route gives natural flavor; synthesis gives artificial Rebaudioside A, same molecule. In the EU and UK the natural claim likewise needs the natural route, while Mercosur and Mexico keep a third class, identical-to-natural, for the synthetic material.

United States
Natural or artificial, by process
European Union and UK
Natural only from natural material
Mercosur and Mexico
Natural or identical-to-natural

How each market defines the classes: natural vs artificial flavor under 21 CFR 101.22.

Regulatory status, with citations

United States

Rebaudioside A is FEMA GRAS under FEMA number 4601. It is cited in the Code of Federal Regulations at 21 CFR 170.36.

21 CFR 170.36

European Union and United Kingdom

Listed on the Union List of flavouring substances as FL 16.113, Annex I Part A under Regulation (EC) 1334/2008, evaluation status approved (EFSA). The UK retains the same list. The entry carries use restrictions.

Use restrictions. Restrictions for use as a flavouring substance: In categories 1, 3, 4.2, 5, 6, 12, 14.1 and 14.2 - not more than 10 mg/kg

JECFA (WHO / FAO)

Rebaudioside A has not been evaluated by JECFA as a flavouring agent, or no evaluation is on file.

Other US flags

Not on the California Proposition 65 list.

Odor and taste

Odor: Sweet, fruity, herbal, green.

Taste: Sweet, clean, refreshing.

Where it is used

Rebaudioside A is used in beverage, confection, sweetener, dairy and bakery, typically as a sweet note.

Structurally similar flavor ingredients

Flavor ingredients with a GRAS determination closest to Rebaudioside A by structure. Whether one can replace it is a sensory and regulatory call; the reformulation tool works that through.

MaterialFEMASimilarityOccurrence
Neohesperidin dihydrochalcone381189%In nature
Naringin dihydrochalcone449588%Not determined
Trilobatin467481%In nature
Vanillin 3-(l-menthoxy)propane-1,2-diol acetal390480%In nature
Myricitrin449176%In nature

More glycosides in this index

Rebaudioside C · Myricitrin · Ethyl vanillin beta-D-glucopyranoside

Rebaudioside A FAQ

Is Rebaudioside A on the FEMA GRAS list?

It is. FEMA number 4601 covers Rebaudioside A. The Code of Federal Regulations lists it at 21 CFR 170.36.

What is the FEMA number for Rebaudioside A?

The FEMA number for Rebaudioside A is 4601 and its CAS registry number is 58543-16-1. Its flavor category is sweet.

What is Rebaudioside A used for?

Rebaudioside A is described as sweet, fruity, herbal, green. On the palate it is sweet, clean, refreshing. It shows up in beverage, confection, sweetener, dairy and bakery.

Is Rebaudioside A approved in the EU?

Yes. FL 16.113 is the Union List entry for Rebaudioside A, annex I Part A, under Regulation 1334/2008, and the UK keeps the same list. Its entry carries use restrictions, listed on this page.

Is Rebaudioside A natural or artificial?

The process decides for Rebaudioside A. It occurs in nature, so a natural-source, natural-process material is natural flavor in the US and synthetic Rebaudioside A is artificial. In the EU and UK the natural claim likewise needs the natural route, while Mercosur and Mexico keep a third class, identical-to-natural, for the synthetic material.

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Sources and attribution. The identity and regulatory facts on this page are taken from the FDA Substances Added to Food inventory, a US government record, which lists this substance as REBAUDIOSIDE A under CAS 58543-16-1 and carries its FEMA number. The inventory is searchable at FDA. FDA records its technical effect as flavoring agent or adjuvant.

A FEMA GRAS conclusion is reached by the Expert Panel of the Flavor and Extract Manufacturers Association of the United States, and the FEMA number names that conclusion. FEMA publishes its own entry for this substance in the FEMA Flavor Library, which is the authoritative record of what the Panel decided and is worth reading alongside this page.

Ambrose Compliance is not affiliated with, endorsed by, or sponsored by FEMA. FEMA and FEMA GRAS are used here as identifiers for a published regulatory determination, not as marks of any relationship between FEMA and Ambrose.

About this page. Facts come from the FDA Substances Added to Food inventory, the Code of Federal Regulations, the EPA TSCA Inventory, the EU Union List, JECFA and the Ambrose database, with FEMA's published determination cited where it applies; parts of the text are written by Ambrose AI, which can make mistakes. Check the cited source before relying on anything here. This is not regulatory or legal advice.