sunscreen

Benzophenone-4

Also known as Sulisobenzone
INCI: BENZOPHENONE-4
CAS Insufficient Data EC 223-772-2
5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid

Purpose

Function

UV Filter
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
GOOD
US
Permitted
Absorptionmoderate
Sensitizationlow
MoSnot established
NOAEL200 mg/kg
ConcernLow
Flags
endocrine_disruptor
Verdict

Good safety profile with established UV filtering efficacy; generally considered safe for cosmetic use.

US Note

CIR: S - JACT 2(5):35-77, 1983

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
Insufficient Data
EC Number
223-772-2
INCI
BENZOPHENONE-4
Category
sunscreen
Updated
Apr 2, 2026