CompoundList
Sign in
Food colors

Rubixanthin

Also known as Natural yellow 27, (3R)-beta,psi-caroten-3-ol, CI 75135

CAS 3763-55-1Formula C40H56OMolar mass 552.89 g/mol
Get quotes Safety data
Rubixanthin chemical structure, C40H56O, CAS 3763-55-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3763-55-1
Formula
C40H56O
Molar mass
552.89 g/mol
HS code
320418
Category
Food colors

What is Rubixanthin?

Plain description, key identifiers and synonyms

Rubixanthin is a carotenol that is a natural xanthophyll pigment. It was formerly used as a food colourant (E161d), but approval for this purpose has been withdrawn throughout the European Union. It has a role as a plant metabolite and a food colouring. It derives from a hydride of a gamma-carotene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl]-3,5,5-trimethylcyclohex-3-en-1-ol
CAS number
3763-55-1
Molecular formula
C40H56O
UNII
0PWJ89032Q
INCI name
CI 75135
InChIKey
ABTRFGSPYXCGMR-AXXBKCDFSA-N
InChI
InChI=1S/C40H56O/c1-31(2)17-13-20-34(5)23-15-25-35(6)24-14-21-32(3)18-11-12-19-33(4)22-16-26-36(7)27-28-39-37(8)29-38(41)30-40(39,9)10/h11-12,14-19,21-28,38,41H,13,20,29-30H2,1-10H3/b12-11+,21-14+,22-16+,25-15+,28-27+,32-18+,33-19+,34-23+,35-24+,36-26+/t38-/m1/s1
Canonical SMILES
CC(C)=CCCC(C)=CC=CC(C)=CC=CC(C)=CC=CC=C(C)C=CC=C(C)C=CC1=C(C)CC(O)CC1(C)C
Isomeric SMILES
CC1=C(C(C[C@@H](C1)O)(C)C)/C=C/C(=C/C=C/C(=C/C=C/C=C(\C)/C=C/C=C(\C)/C=C/C=C(\C)/CCC=C(C)C)/C)/C

Synonyms

  • Natural yellow 27
  • (3R)-beta,psi-caroten-3-ol
  • CI 75135
  • g-Caroten-3-ol
  • b,y-Caroten-3-ol
  • 3-Hydroxy-g-carotene
  • (all-E,3R)-rubixanthin
  • (3R)-Rubixanthin
  • all-trans-Rubixanthin
  • gamma-Caroten-3-ol, (R)-all-trans-
  • (1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl]-3,5,5-trimethylcyclohex-3-en-1-ol
  • E 161d
  • 3',4'-Dihydrocelaxanthin
  • beta,omega-caroten-3-ol, (3R)-
  • (1R)-4-((1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl)-3,5,5-trimethylcyclohex-3-en-1-ol
  • (3R)-beta-4-Caroten-3-ol
  • beta-4-Caroten-3-ol, (3R)-
  • (1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl]-3,5,5-trimethyl-cyclohex-3-en-1-ol

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
552.89 g/molcalc.
Exact mass
552.4331 Dacalc.
LogP (octanol/water)
11.74calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
13calc.
Heavy atoms
41calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.4calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Fails (2 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, 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.

Rubixanthin 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 Rubixanthin can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Rubixanthin 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

Use classes: Cosmetics.

Cosmetic ingredient, INCI name CI 75135(colorant)

Roles

  • additive
  • eukaryotic metabolite
  • food additive
  • food colouring
  • food component
  • metabolite
  • physiological role
  • plant metabolite

Cosmetic functions

  • Colorant

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex IV, allowed colourant
    Name: CI 75135, Ref no: 112, Annex ref: IV/112

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Rubixanthin 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 Rubixanthin is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Rubixanthin?

Rubixanthin is a carotenol that is a natural xanthophyll pigment. It was formerly used as a food colourant (E161d), but approval for this purpose has been withdrawn throughout the European Union. It has a role as a plant metabolite and a food colouring. It derives from a hydride of a gamma-carotene.

What is the CAS number of Rubixanthin?

The CAS registry number of Rubixanthin is 3763-55-1.

What is the molecular formula and weight of Rubixanthin?

The molecular formula of Rubixanthin is C40H56O and its molar mass is 552.89 g/mol.

What is Rubixanthin used for?

Use classes: Cosmetics.

Is Rubixanthin hazardous?

No GHS hazard classification for Rubixanthin 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 Rubixanthin?

Rubixanthin 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 Rubixanthin?

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

What is the price of Rubixanthin?

Suppliers quote Rubixanthin 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 Rubixanthin

Get quotes for Rubixanthin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Rubixanthin
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 Rubixanthin 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/rubixanthin-3763-55-1" title="Rubixanthin 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