CompoundList
Sign in
Food colors

Citranaxanthin

Also known as 3,5,7,9,11,13,15,17,19-Eicosanonaen-2-one, 5,9,14,18-tetramethyl-20-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, (3E,5E,7E,9E,11E,13E,15E,17E,19E)-, (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohexen-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one, (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohex-1-en-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one

CAS 3604-90-8Formula C33H44OMolar mass 456.71 g/molEC 222-762-5
Get quotes Safety data
Citranaxanthin chemical structure, C33H44O, CAS 3604-90-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3604-90-8
Formula
C33H44O
Molar mass
456.71 g/mol
EC number
222-762-5
HS code
320418
Category
Food colors

What is Citranaxanthin?

Plain description, key identifiers and synonyms

Citranaxanthin is an apo carotenoid compound arising from oxidative degradation of the beta,beta-carotene skeleton at the 1'- and 6'-positions. It has a role as a food colouring. It is an enone and an apo carotenoid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohexen-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one
CAS number
3604-90-8 CAS number cross-checked
EC number
222-762-5
Molecular formula
C33H44O
UNII
4QIX1TA44L
InChIKey
PRDJTOVRIHGKNU-ZWERVMMHSA-N
InChI
InChI=1S/C33H44O/c1-26(16-11-18-28(3)21-23-31(6)34)14-9-10-15-27(2)17-12-19-29(4)22-24-32-30(5)20-13-25-33(32,7)8/h9-12,14-19,21-24H,13,20,25H2,1-8H3/b10-9+,16-11+,17-12+,23-21+,24-22+,26-14+,27-15+,28-18+,29-19+
Canonical SMILES
CC(=O)C=CC(C)=CC=CC(C)=CC=CC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C
Isomeric SMILES
CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C/C=C/C=C(\C)/C=C/C=C(\C)/C=C/C(=O)C)/C)/C

Synonyms

  • 3,5,7,9,11,13,15,17,19-Eicosanonaen-2-one, 5,9,14,18-tetramethyl-20-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, (3E,5E,7E,9E,11E,13E,15E,17E,19E)-
  • (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohexen-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one
  • (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-tetramethyl-20-(2,6,6-trimethylcyclohex-1-en-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one
  • (E)-5,9,14,18-Tetramethyl-20-(2,6,6-trimethylcyclohexenyl)-3,5,7,9,11,13,15,17,19-icosanonaen-2-one
  • Citranxanthin
  • E 161i
  • 5',6'-Dihydro-5'-apo-18'-nor-b-caroten-6'-one
  • 5',6'-Dihydro-5'-apo-18'-nor-beta-caroten-6'-one
  • (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-Tetramethyl-20-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3,5,7,9,11,13,15,17,19-eicosanonaen-2-one

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
456.71 g/molcalc.
Exact mass
456.3392 Dacalc.
LogP (octanol/water)
9.67calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
10calc.
Heavy atoms
34calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.36calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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, C1=CCCCC1

C1=CCCCC1

1 ring, 6 atoms, the Cyclohexene ring system.

5,167 other chemicals 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.

Citranaxanthin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

No supplier listings yet

Post one free request and suppliers who make or trade Citranaxanthin can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Citranaxanthin 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Roles

  • additive
  • food additive
  • food colouring
  • food component
  • physiological role

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 Citranaxanthin is traded under.

HS 3204.18Indicative HS code

Carotenoid colouring matters and preparations based thereon

World exports in 2024
$696M
+8.0% vs 2023, imports $526M
2022 to 2024
Top exporters
  1. France * partner reported34.6%
  2. Netherlands31.7%
  3. Germany12.1%
Top importers
  1. Netherlands34.7%
  2. China6.3%
  3. France * partner reported5.0%

* Partner reported figures, a lower bound.

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

The HS code shown for Citranaxanthin is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Citranaxanthin, based on the data on this page

What is Citranaxanthin?

Citranaxanthin is an apo carotenoid compound arising from oxidative degradation of the beta,beta-carotene skeleton at the 1'- and 6'-positions. It has a role as a food colouring. It is an enone and an apo carotenoid.

What is the CAS number of Citranaxanthin?

The CAS registry number of Citranaxanthin is 3604-90-8.

What is the molecular formula and weight of Citranaxanthin?

The molecular formula of Citranaxanthin is C33H44O and its molar mass is 456.71 g/mol.

What is Citranaxanthin used for?

Known uses and roles of Citranaxanthin include food colors in food and beverage, carotenoid pigments in animal feed and nutrition, additive, food additive, food colouring and 2 more.

Is Citranaxanthin hazardous?

No GHS hazard classification for Citranaxanthin 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 Citranaxanthin?

Citranaxanthin is usually classified under HS code 320418 (Carotenoid colouring matters and preparations based thereon). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Citranaxanthin?

Post a free request on CompoundList and suppliers of Citranaxanthin will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Citranaxanthin?

Suppliers quote Citranaxanthin 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 Citranaxanthin

Get quotes for Citranaxanthin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Citranaxanthin
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Citranaxanthin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/citranaxanthin-3604-90-8" title="Citranaxanthin structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Food colors or HS code 320418

Price on request
Free quotes, contact stays private
Get quotes