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Impurities and reference standards

Rebaudioside E

Also known as (-)-Rebaudioside E, KAUR-16-EN-18-oic acid, 13-((2-o-beta-D-glucopyranosyl-beta-D-glucopyranosyl)oxy)-, 2-o-beta-D-glucopyranosyl-beta-D-glucopyranosyl ester, (4alpha)-, Rebaudioside Impurity E

CAS 63279-14-1Formula C44H70O23Molar mass 967.02 g/mol
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Rebaudioside E chemical structure, C44H70O23, CAS 63279-14-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
63279-14-1
Formula
C44H70O23
Molar mass
967.02 g/mol
HS code
293890
Category
Impurities and reference standards

What is Rebaudioside E?

Plain description, key identifiers and synonyms

Rebaudioside E is a rebaudioside that is stevioside in which the hydroxy group at position 2 of the glucosyl ester moiety has been converted into the corresponding beta-D-glucoside. It is a rebaudioside and a sophoroside. It is functionally related to a stevioside.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(2S,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl] (1R,4S,5R,9S,10R,13S)-13-[(2S,3R,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5,9-dimethyl-14-methylidenetetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylate
CAS number
63279-14-1 CAS number cross-checked
Molecular formula
C44H70O23
UNII
693TGS3OHR
InChIKey
RLLCWNUIHGPAJY-SFUUMPFESA-N
InChI
InChI=1S/C44H70O23/c1-17-11-43-9-5-22-41(2,7-4-8-42(22,3)40(59)66-38-34(30(55)26(51)20(14-47)62-38)64-36-32(57)28(53)24(49)18(12-45)60-36)23(43)6-10-44(17,16-43)67-39-35(31(56)27(52)21(15-48)63-39)65-37-33(58)29(54)25(50)19(13-46)61-37/h18-39,45-58H,1,4-16H2,2-3H3/t18-,19-,20-,21-,22+,23+,24-,25-,26-,27-,28+,29+,30+,31+,32-,33-,34-,35-,36+,37+,38+,39+,41-,42-,43-,44+/m1/s1
Canonical SMILES
C=C1CC23CCC4C(C)(C(=O)OC5OC(CO)C(O)C(O)C5OC5OC(CO)C(O)C(O)C5O)CCCC4(C)C2CCC1(OC1OC(CO)C(O)C(O)C1OC1OC(CO)C(O)C(O)C1O)C3
Isomeric SMILES
C[C@@]12CCC[C@@]([C@H]1CC[C@]34[C@H]2CC[C@](C3)(C(=C)C4)O[C@H]5[C@@H]([C@H]([C@@H]([C@H](O5)CO)O)O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O)(C)C(=O)O[C@H]7[C@@H]([C@H]([C@@H]([C@H](O7)CO)O)O)O[C@H]8[C@@H]([C@H]([C@@H]([C@H](O8)CO)O)O)O

Synonyms

  • (-)-Rebaudioside E
  • KAUR-16-EN-18-oic acid, 13-((2-o-beta-D-glucopyranosyl-beta-D-glucopyranosyl)oxy)-, 2-o-beta-D-glucopyranosyl-beta-D-glucopyranosyl ester, (4alpha)-
  • Rebaudioside Impurity E
  • Reb E
  • (4R)-13-[[2-O-(|A-D-Glucopyranosyl)-|A-D-glucopyranosyl]oxy]kaur-16-en-18-oic acid 2-O-(|A-D-glucopyranosyl)-|A-D-glucopyranosyl ester
  • 13-[(O-b-D-Glucoopyranosyl-(1,2)-O-[b-D-glucopyranosyl)-oxy]-kaur-16-en-18-oic acid (4')-O-b-D-glucopyranosyl-deoxy-(1,2)-O-[b-D-glu copyranosyl ester
  • Kaur-16-en-18-oic acid, 13-((2-o-beta-d-glucopyranosyl-beta-d-glucopyranosyl)oxy)-, 2-o-beta-d-glucopyranosyl-beta-d-glucopyranosyl ester, (4.alpha.)-

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
967.02 g/molcalc.
Exact mass
966.4308 Dacalc.
LogP (octanol/water)
-5.11calc.
Topological polar surface area
374.1 Ųcalc.
Hydrogen bond donors
14calc.
Hydrogen bond acceptors
23calc.
Rotatable bonds
12calc.
Heavy atoms
67calc.
Rings
8calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.93calc.
Formal charge
0calc.
Stereocentres
26calc.
Lipinski rule of five
Fails (3 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C=C1CC23CCC4C(C(=O)OC5OCCCC5OC5CCCCO5)CCCC4C2CCC1(OC1OCCCC1OC1CCCCO1)C3

C=C1CC23CCC4C(C(=O)OC5OCCCC5OC5CCCCO5)CCCC4C2CCC1(OC1OCCCC1OC1CCCCO1)C3

8 rings, 47 atoms.

1 other chemical share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Rebaudioside E suppliers

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Rebaudioside E price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Industries and functions

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Rebaudioside E is traded under.

HS 2938.90Indicative HS code

Natural or reproduced by synthesis, other than rutoside (rutin) and its derivatives

World exports in 2024
$1.4B
−8.3% vs 2023, imports $1.35B
2019 to 2024
Top exporters
  1. China49.2%
  2. France * partner reported8.9%
  3. Malaysia6.1%
Top importers
  1. United States22.3%
  2. India * partner reported7.8%
  3. Brazil5.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Rebaudioside E is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Rebaudioside E, based on the data on this page

What is Rebaudioside E?

Rebaudioside E is a rebaudioside that is stevioside in which the hydroxy group at position 2 of the glucosyl ester moiety has been converted into the corresponding beta-D-glucoside. It is a rebaudioside and a sophoroside. It is functionally related to a stevioside.

What is the CAS number of Rebaudioside E?

The CAS registry number of Rebaudioside E is 63279-14-1.

What is the molecular formula and weight of Rebaudioside E?

The molecular formula of Rebaudioside E is C44H70O23 and its molar mass is 967.02 g/mol.

What is Rebaudioside E used for?

Known uses and roles of Rebaudioside E include tackifiers in adhesives and sealants.

Is Rebaudioside E hazardous?

No GHS hazard classification for Rebaudioside E is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Rebaudioside E?

Rebaudioside E is usually classified under HS code 293890 (Glycosides, natural or reproduced by synthesis, and their salts, ethers, esters and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Rebaudioside E?

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What is the price of Rebaudioside E?

Suppliers quote Rebaudioside E on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Rebaudioside E

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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