Benzophenone-9

AKA: 76656-36-5, Benzophenone 9, Uvinuc ds 49, Uvinul 3048, Disodium 2, 2'-dihydroxy-4, 4'-dimethoxy-5, 5'-disulfobenzophenone, 2'-Dihydroxy-4, Disodium salt
Synthetic
Sunscreen Filter
Clean
OriginBenzophenone-9 is synthesized from benzophenone, a aromatic organic compound derived from petroleum-based chemical precursors. It is produced through selective hydroxylation and sulfonation reactions applied to the benzophenone parent structure.
Disodium 3,3'-carbonylbis[4-hydroxy-6-methoxybenzenesulphonate]
Formula
C15H12Na2O11S2
Mol. Weight
478.40
CAS #
76656-36-5
Form
Powder
Skin Types
●all-skin-types, gentle
Best For
Sun Damage
Pregnancy & Breastfeeding Safe
Caution
Functions
Uv Absorber
Blocks or absorbs UV rays to protect your skin from sun damage, dark spots, and premature aging.
Shields from UV damage
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Skin Irritant
2 studies / 2 not irritating (CIR 827)
Not an Eye Irritant
1 study / 1 not irritating (CIR 827)
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · 2020 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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