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CAS 943-89-5 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 9317120/10/2015

METHOXYCINNAMIC ACID

2-Propenoic acid, 3-(4-methoxyphenyl)-, (2E)-

METHOXYCINNAMIC ACID is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 943-89-5

CAS 943-89-5PubChem CID 699414

4-Methoxycinnamic Acid

4-methoxycinnamic acid is a methoxycinnamic acid having a single methoxy substituent at the 4-position on the phenyl ring. It is functionally related to a cinnamic acid. — ChEBI

IUPAC name: (E)-3-(4-methoxyphenyl)prop-2-enoic acid

Molecular formula: C10H10O3
Molecular weight: 178.18 g/mol
Exact mass: 178.062994177 Da
XLogP3: 1.8
Topological polar surface area: 46.5 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

830-09-13-(4-methoxyphenyl)acrylic acid(2E)-3-(4-methoxyphenyl)prop-2-enoic acid2-Propenoic acid, 3-(4-methoxyphenyl)-3-(4-Methoxyphenyl)-2-propenoic acidNSC-5303NSC-6234376G4ML8401A

16 more reported names

3-(4-methoxyphenyl)prop-2-enoic acidCHEBI:48541RefChem:25958212-594-0(E)-3-(4-Methoxyphenyl)acrylic acidP-METHOXYCINNAMIC ACIDtrans-4-Methoxycinnamic acidpara-methoxycinnamic acidCinnamic acid, p-methoxy-O-Methyl-p-coumaric acid2-Propenoic acid, 3-(4-methoxyphenyl)-, (2E)-Cinnamic acid, 4-methoxy-(E)-p-Methoxycinnamic acid4-Methoxycinnamic acid, predominantly trans(E)-4-METHOXYCINNAMIC ACIDBernel hydro

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:143736
ChEBI:CHEBI:48541
ChEMBL:CHEMBL95770
EPA DTXSID:DTXSID1046059
PubMed:15464616
PubMed:14041847

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for METHOXYCINNAMIC ACID

INCI name

METHOXYCINNAMIC ACID

Description

2-Propenoic acid, 3-(4-methoxyphenyl)-, (2E)-

Record provenance

Inventory reference: 93171
Imported identity: METHOXYCINNAMIC ACID
Source update: 20/10/2015

European Commission CosIng source notes

Annex records for METHOXYCINNAMIC ACID

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Key data

CAS

943-89-5

213-405-4

Restriction

—

Function

LIGHT STABILIZER: Protecting the cosmetic product from deterioration effects of light.
UV FILTER: Exclusively or mainly intended to protect the skin and/or hair against certain UV radiation by absorbing, reflecting or scattering UV radiation. All authorised UV filters are substances in the positive list of Annex VI to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#16412 · METHOXYCINNAMIC ACID

Ingredients with overlapping formulation functions

LUPEYL ISONICOTINATEANTIOXIDANT, SKIN PROTECTING, UV FILTER

MENAQUINONE-7ANTI-SEBUM, ASTRINGENT, BLEACHING, SKIN PROTECTING, UV FILTER

METHOXY PEG-3 DEHYDROCHOLESTERYL SUCCINATEANTIOXIDANT, HAIR CONDITIONING, UV FILTER

METHOXY PEG-7 DEHYDROCHOLESTERYL SUCCINATEANTIOXIDANT, HAIR CONDITIONING, UV FILTER

METHOXYCINNAMIDOPROPYLDIMONIUM HYDROXYPROPYLSTEARDIMONIUM CHLORIDEUV FILTER

METHOXYCYCLOHEXENONE ETHYLHEXYL GLYCINATEANTIOXIDANT; SKIN CONDITIONING - EMOLLIENT; SOLVENT; LIGHT STABILIZER; UV FILTER

METHOXYPHENYLIMINO DIMETHYLCYCLOHEXENE GLYCINEANTIOXIDANT; UV FILTER; SKIN CONDITIONING - MISCELLANEOUS

METHOXYPHENYLIMINO DIMETHYLCYCLOHEXENYL ETHYL GLYCINATEFRAGRANCE; SKIN PROTECTING; LIGHT STABILIZER; UV ABSORBER; PERFUMING; ANTIOXIDANT; UV FILTER

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How METHOXYCINNAMIC ACID appears in the CosIng inventory

The CosIng inventory lists METHOXYCINNAMIC ACID as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

METHOXYCINNAMIC ACID is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

METHOXYCINNAMIC ACID is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, METHOXYCINNAMIC ACID carries the following function designation(s):

CAS 943-89-5 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for METHOXYCINNAMIC ACID

This page reproduces the CosIng inventory entry for METHOXYCINNAMIC ACID from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research METHOXYCINNAMIC ACID and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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