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Food and feed additives

alpha-Cyclodextrin

Also known as Alfadex, alpha-Dextrin, Cyclomaltohexose

CAS 10016-20-3Formula C36H60O30Molar mass 972.85 g/molEC 233-007-4
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alpha-Cyclodextrin chemical structure, C36H60O30, CAS 10016-20-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10016-20-3
Formula
C36H60O30
Physical form
Crystals
Melting point
277.8 °C
HS code
294000
Category
Food and feed additives
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is alpha-Cyclodextrin?

Plain description, key identifiers and synonyms

Alpha-cyclodextrin is a cycloamylose composed of six alpha-(14) linked D-glucopyranose units.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1S,3R,5R,6S,8R,10R,11S,13R,15R,16S,18R,20R,21S,23R,25R,26S,28R,30R,31R,32R,33R,34R,35R,36R,37R,38R,39R,40R,41R,42R)-5,10,15,20,25,30-hexakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29-dodecaoxaheptacyclo[26.2.2.23,6.28,11.213,16.218,21.223,26]dotetracontane-31,32,33,34,35,36,37,38,39,40,41,42-dodecol
CAS number
10016-20-3 CAS number cross-checked
EC number
233-007-4
Molecular formula
C36H60O30
UNII
Z1LH97KTRM
MDL number
MFCD00078207
InChIKey
HFHDHCJBZVLPGP-RWMJIURBSA-N
InChI
InChI=1S/C36H60O30/c37-1-7-25-13(43)19(49)31(55-7)62-26-8(2-38)57-33(21(51)15(26)45)64-28-10(4-40)59-35(23(53)17(28)47)66-30-12(6-42)60-36(24(54)18(30)48)65-29-11(5-41)58-34(22(52)16(29)46)63-27-9(3-39)56-32(61-25)20(50)14(27)44/h7-54H,1-6H2/t7-,8-,9-,10-,11-,12-,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26-,27-,28-,29-,30-,31-,32-,33-,34-,35-,36-/m1/s1
Canonical SMILES
OCC1OC2OC3C(CO)OC(OC4C(CO)OC(OC5C(CO)OC(OC6C(CO)OC(OC7C(CO)OC(OC1C(O)C2O)C(O)C7O)C(O)C6O)C(O)C5O)C(O)C4O)C(O)C3O
Isomeric SMILES
C([C@@H]1[C@@H]2[C@@H]([C@H]([C@H](O1)O[C@@H]3[C@H](O[C@@H]([C@@H]([C@H]3O)O)O[C@@H]4[C@H](O[C@@H]([C@@H]([C@H]4O)O)O[C@@H]5[C@H](O[C@@H]([C@@H]([C@H]5O)O)O[C@@H]6[C@H](O[C@@H]([C@@H]([C@H]6O)O)O[C@@H]7[C@H](O[C@H](O2)[C@@H]([C@H]7O)O)CO)CO)CO)CO)CO)O)O)O

Synonyms

  • Alfadex
  • alpha-Dextrin
  • Cyclomaltohexose
  • Cyclohexaamylose
  • alpha-Cycloamylose
  • Cyclomaltohexaose
  • Alfadexum
  • alpha cyclodextrin
  • Dextrin, alpha-cyclo
  • Oristar acd
  • Ringdex-a
  • Cavamax w6
  • Cavamax w 6 food
  • Celdex a 100
  • Ins no.457
  • Ins-457
  • Alpha-Cyclodextrin (Cyclohexa-Amylose)
  • GlyTouCan:G22307HL
  • DEXY PEARL ALPHA-100
  • Cyclohexapentylose
  • a-cyclodextrin
  • alpha-Schardinger dextrin
  • Alfadex CRS
  • 2zym
  • 3zst
Show all 30 synonyms
  • 4fem
  • Alfadex, Cyclohexakis-(1?4)-(a-D-glucopyranosyl) (cyclomaltohexaose), Cyclohexakis-(1?4)-(a-D-glucopyranosyl) a-cyclodextrin
  • Alfadex (INN/NF)
  • Betadex EP Impurity A
  • 3ck7

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

Physical form
Crystalsexp.
Melting point
277.8 °Cexp.

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
972.85 g/molcalc.
Exact mass
972.3169 Dacalc.
LogP (octanol/water)
-13.05calc.
Topological polar surface area
474.9 Ųcalc.
Hydrogen bond donors
18calc.
Hydrogen bond acceptors
30calc.
Rotatable bonds
6calc.
Heavy atoms
66calc.
Rings
22calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
30calc.
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, C1CC2OCC1OC1CCC(CO1)OC1CCC(CO1)OC1CCC(CO1)OC1CCC(CO1)OC1CCC(CO1)O2

C1CC2OCC1OC1CCC(CO1)OC1CCC(CO1)OC1CCC(CO1)OC1CCC(CO1)OC1CCC(CO1)O2

22 rings, 42 atoms.

51 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms

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

Full safety data and first aid

alpha-Cyclodextrin suppliers

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Where suppliers are based

50 suppliers in 9 countries

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alpha-Cyclodextrin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Preservative.

Consumer uses: Preservative.

Roles

  • antineoplastic agent
  • pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code alpha-Cyclodextrin is traded under.

HS 2940.00Indicative HS code

Sugar ethers, sugar acetals and sugar esters, and their salts, other than the products of heading 29.37…

World exports in 2024
$1.4B
−5.4% vs 2023, imports $1.42B
2019 to 2024
Top exporters
  1. Germany23.7%
  2. China20.6%
  3. United States11.5%
Top importers
  1. United States14.0%
  2. Japan7.4%
  3. Germany6.1%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about alpha-Cyclodextrin, based on the data on this page

What is alpha-Cyclodextrin?

Alpha-cyclodextrin is a cycloamylose composed of six alpha-(14) linked D-glucopyranose units.

What is the CAS number of alpha-Cyclodextrin?

The CAS registry number of alpha-Cyclodextrin is 10016-20-3.

What is the molecular formula and weight of alpha-Cyclodextrin?

The molecular formula of alpha-Cyclodextrin is C36H60O30 and its molar mass is 972.85 g/mol.

What is alpha-Cyclodextrin used for?

Industrial uses: Preservative. Consumer uses: Preservative.

Is alpha-Cyclodextrin hazardous?

No GHS hazard classification for alpha-Cyclodextrin 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 alpha-Cyclodextrin?

alpha-Cyclodextrin is usually classified under HS code 294000 (Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy alpha-Cyclodextrin?

CompoundList lists 50 suppliers of alpha-Cyclodextrin in China, United States, Germany, United Kingdom and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy alpha-Cyclodextrin in India?

2 suppliers in India list alpha-Cyclodextrin on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of alpha-Cyclodextrin?

Suppliers quote alpha-Cyclodextrin 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 alpha-Cyclodextrin

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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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