UV Filter

Benzylidene Dimethoxydimethylindanone

INCI: BENZYLIDENE DIMETHOXYDIMETHYLINDANONE
CAS 924627-52-1
1H-Inden-1-one, 2,3-Dihydro-5,6-Dimethoxy-3,3-Dimethyl-2-(Phenylmethylene)-
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

1H-Inden-1-one, 2,3-Dihydro-5,6-Dimethoxy-3,3-Dimethyl-2-(Phenylmethylene)-

Purpose

Function

Skin protecting (UV-booster / photostabilizer — used in sunscreens and photoprotective formulations)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Restricted
Absorptionmoderate
Sensitizationlow
MoSnot established
ConcernModerate
Verdict

Novel ingredient with low market prevalence. If functioning as a de facto UV filter/booster, regulatory classification may be challenged in certain Member States. Full toxicology dossier from supplier mandatory for CPSR.

US Note

Not specifically restricted; not an FDA-approved sunscreen active. Used as a cosmetic functional ingredient

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
924627-52-1
INCI
BENZYLIDENE DIMETHOXYDIMETHYLINDANONE
Category
UV Filter
Updated
Apr 2, 2026