Ingredient Dictionary

METHOXYCINNAMIC ACID

4-methoxycinnamic acid is a methoxycinnamic acid having a single methoxy substituent at the 4-position on the phenyl ring.

Definition

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.

Source: PubChem

US FDA substance register · UNII 6G4ML8401A · registered name 4-METHOXYCINNAMIC ACID · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Protects colour and scent from lightLIGHT STABILIZERFilters UV to protect skin (sunscreen active)UV FILTER

More data — names, identifiers, properties, test records, literature

Names & identifiers

METHOXYCINNAMIC ACIDINCI2-Propenoic acid, 3-(4-methoxyphenyl)-, (E)-Synonym

CAS No.chemical registry number: 943-89-5
EC No.EU chemical inventory number: 213-405-4
DTXSIDUS EPA chemical ID: DTXSID1046059
DTXCIDUS EPA compound ID: DTXCID9026059

IUPAC: (2E)-3-(4-Methoxyphenyl)prop-2-enoic acid
Molecular formula: C10H10O3
Molecular weight: 178.187 g/mol

Measured properties

Appearance: Solid
Melting point: 173 - 175 °C
Solubility: 0.712 mg/mL at 25 °C

Values measured on the substance itself, not a specification for a commercial raw material.

Source: PubChem

What products actually use it for

What the 2 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

UV stabilizer1
Stabilizing agent1

Source: US EPA CompTox dashboard