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Aromatic building blocks

Ro 11-503

Also known as Ro 11503, Ro-11-503, 2,4,6,8-Nonatetraenoic acid, 9-(3-chloro-2,4,6-trimethylphenyl)-3,7-dimethyl-, ethyl ester, (all-E)-

CAS 74479-75-7Formula C22H27ClO2Molar mass 358.91 g/mol
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Ro 11-503 chemical structure, C22H27ClO2, CAS 74479-75-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
74479-75-7
Formula
C22H27ClO2
Molar mass
358.91 g/mol
HS code
291639
Category
Aromatic building blocks

What is Ro 11-503?

Plain description, key identifiers and synonyms

Ro 11-503 is a chemical substance with the molecular formula C22H27ClO2 and a molar mass of 358.91 g/mol. Its CAS registry number is 74479-75-7. The IUPAC name is ethyl (2E,4E,6E,8E)-9-(3-chloro-2,4,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl (2E,4E,6E,8E)-9-(3-chloro-2,4,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate
CAS number
74479-75-7
Molecular formula
C22H27ClO2
InChIKey
NXIHLBSXOXSDDK-PAAZSCCJSA-N
InChI
InChI=1S/C22H27ClO2/c1-7-25-21(24)13-16(3)10-8-9-15(2)11-12-20-17(4)14-18(5)22(23)19(20)6/h8-14H,7H2,1-6H3/b10-8+,12-11+,15-9+,16-13+
Canonical SMILES
CCOC(=O)C=C(C)C=CC=C(C)C=Cc1c(C)cc(C)c(Cl)c1C
Isomeric SMILES
CCOC(=O)/C=C(\C)/C=C/C=C(\C)/C=C/C1=C(C(=C(C=C1C)C)Cl)C

Synonyms

  • Ro 11503
  • Ro-11-503
  • 2,4,6,8-Nonatetraenoic acid, 9-(3-chloro-2,4,6-trimethylphenyl)-3,7-dimethyl-, ethyl ester, (all-E)-
  • ethyl (2E,4E,6E,8E)-9-(3-chloro-2,4,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate

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
358.91 g/molcalc.
Exact mass
358.17 Dacalc.
LogP (octanol/water)
6.29calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
6calc.
Heavy atoms
25calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.32calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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.

Ro 11-503 suppliers

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Ro 11-503 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

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 Ro 11-503 is traded under.

HS 2916.39Indicative HS code

Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…

World exports in 2024
$706M
−6.8% vs 2023, imports $714M
2019 to 2024
Top exporters
  1. China49.0%
  2. India * partner reported16.2%
  3. Germany13.2%
Top importers
  1. India * partner reported14.5%
  2. United States12.2%
  3. Germany8.6%

* Partner reported figures, a lower bound.

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

The HS code shown for Ro 11-503 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ro 11-503, based on the data on this page

What is Ro 11-503?

Ro 11-503 is a chemical substance with the molecular formula C22H27ClO2 and a molar mass of 358.91 g/mol. Its CAS registry number is 74479-75-7. The IUPAC name is ethyl (2E,4E,6E,8E)-9-(3-chloro-2,4,6-trimethylphenyl)-3,7-dimethylnona-2,4,6,8-tetraenoate.

What is the CAS number of Ro 11-503?

The CAS registry number of Ro 11-503 is 74479-75-7.

What is the molecular formula and weight of Ro 11-503?

The molecular formula of Ro 11-503 is C22H27ClO2 and its molar mass is 358.91 g/mol.

What is Ro 11-503 used for?

Known uses and roles of Ro 11-503 include building blocks in research and laboratory.

Is Ro 11-503 hazardous?

No GHS hazard classification for Ro 11-503 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 Ro 11-503?

Ro 11-503 is usually classified under HS code 291639 (Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ro 11-503?

Post a free request on CompoundList and suppliers of Ro 11-503 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Ro 11-503?

Suppliers quote Ro 11-503 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 Ro 11-503

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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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