Cosmetic Ingredient

Benzophenone-9

INCI: BENZOPHENONE-9
CAS 3121-60-6 EC 278-520-4
Disodium 3,3'-carbonylbis[4-hydroxy-6-methoxybenzenesulphonate]
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Disodium 3,3'-carbonylbis[4-hydroxy-6-methoxybenzenesulphonate]

Purpose

Function

UV absorber, light stabilizer
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Permitted
Absorptionlow
Sensitizationlow
MoSadequate
NOAEL200 mg/kg
ConcernLow
Verdict

Prohibited in EU but permitted in US; CIR safety assessment confirmed non-mutagenic and non-genotoxic.

US Note

Not an OTC sunscreen active; CIR concluded safe (originally 1983, reaffirmed 2021)

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
3121-60-6
EC Number
278-520-4
INCI
BENZOPHENONE-9
Category
Cosmetic Ingredient
Updated
Apr 2, 2026