Benzophenone-2
molecular structure · PubChem
AKA: 4'-Tetrahydroxybenzophenone, 131-55-5, Bis(2, 4-dihydroxyphenyl)methanone, Methanone, Uvinol D-50, Uvinul D-50, 4, 4'-hydroxybenophenone
Synthetic
Sunscreen Filter
Not Clean
2,2',4,4'-Tetrahydroxybenzophenone
Solubility In water, 8,821 mg/L at 24.99 °C
Formula
C13H10O5
Mol. Weight
246.21
CAS #
131-55-5
Form
Powder
Functions
Uv Absorber
Blocks or absorbs UV rays to protect your skin from sun damage, dark spots, and premature aging.
Shields from UV damage
Traditional Use
A synthetic UV absorber developed in the mid-20th century for sunscreen formulations. Engineered to provide broad-spectrum UV protection in cosmetics as part of the modern synthetic alternative to natural sun-protective ingredients.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
ewg-4
medical-approval
all-shades-safe
Concentration Guide
5.0%
0%7%
Reg. Limit
EU/SCCS limit: 5% in cosmetic products. Opinion: SCCS/1679/25
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Sun Damage
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR