Benzophenone-8
AKA “dioxybenzone, 2'-DIHYDROXY-4-METHOXYBENZOPHENONE, Dioxybenzon, Spectra-sorb UV 24, Cyasorb UV 24, Advastab 47, (2-Hydroxy-4-methoxyphenyl)(2-hydroxyphenyl)methanone, Methanone
Synthetic
Ingredient Facts
Benzophenone-8
AKA: Dioxybenzone, 2'-DIHYDROXY-4-METHOXYBENZOPHENONE, Dioxybenzon, Spectra-sorb UV 24, Cyasorb UV 24, Advastab 47, (2-Hydroxy-4-methoxyphenyl)(2-hydroxyphenyl)methanone, Methanone
Synthetic · Uv Absorber · EWG: 1
Synthetic
Sunscreen Filter
Synthetic
Clean
A UV filter that helps protect skin from sun damage and premature aging caused by sun exposure.
Solubility Practically insoluble in water
Formula
C14H12O4
Mol. Weight
244.24
CAS #
131-53-3
Form
Powder
State
2,2'-dihydroxy-4-methoxybenzophenone is a yellow powder. (NTP, 1992)
See origin →
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 benzophenone-type UV absorber developed for cosmetic and sunscreen use in the late 20th century. Engineered as an alternative to earlier benzophenones with potentially improved photostability or tolerance profiles.
Skin Types
all-skin-types
Best For
Sun Damage
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Caution
EWG
1
CIR
Safe w/Qualifications
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
3.0%
0%4%
Reg. Limit
FDA OTC limit (Sunscreen): 3%. 21 CFR 352.10
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR