Methoxycinnamic Acid

INCI: METHOXYCINNAMIC ACID

Methoxycinnamic Acid (CAS 830-09-1 (trans-4-methoxycinnamic acid)) is a cosmetic cosmetic ingredient functioning as UV absorber; chemical intermediate for UV-B filter esters such as ethylhexyl. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 830-09-1 (trans-4-methoxycinnamic acid) →

Auto-generated CPSR Part A draft with source citations
CAS Number
830-09-1 (trans-4-methoxycinnamic acid)
View industrial chemical safety profile →
Function
UV absorber; chemical intermediate for UV-B filter esters such as ethylhexyl methoxycinnamate
Safety Rating
MODERATE

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted for cosmetic use; not an FDA monograph-approved OTC sunscreen active

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Methoxycinnamic Acid.

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Expert safety assessment and concern-level summary for Methoxycinnamic Acid.

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Methoxycinnamic Acid safe in cosmetics?

Methoxycinnamic Acid has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.

Is Methoxycinnamic Acid allowed in the EU?

Methoxycinnamic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methoxycinnamic Acid do in cosmetics?

Methoxycinnamic Acid functions as: UV absorber; chemical intermediate for UV-B filter esters such as ethylhexyl methoxycinnamate. It is classified as a cosmetic ingredient in our database. CAS number: 830-09-1 (trans-4-methoxycinnamic acid).

Is Methoxycinnamic Acid in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Methoxycinnamic Acid in your formulation.