Also known as: 2-Hydroxy-4-methoxy-5-sulfobenzophenone, Benzenesulfonic acid, 5-benzoyl-4-hydroxy-2-methoxy-, Benzophenone 4, 2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid, BRN 2889165 (+3 more)
INCI: SULISOBENZONE
Sulisobenzone (Benzophenone-4) (CAS 4065-45-6) is a cosmetic uv filter / sunscreen functioning as UV Filter. NOAEL 620 mg/kg bw/day (PDF-verified against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted; 5 safety opinions reviewed (sccs). Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.
For full compliance data across multiple jurisdictions, use the
Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Sulisobenzone (Benzophenone-4).
Calculate MoS for your specific formulation with the
MoS Calculator.
Toxicological Studies
10 study endpoints found for Sulisobenzone (Benzophenone-4). NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.
Endpoint
Value
Route
Species
Study Type
Source
NOAEL
=620 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
NOAEL
=620 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
NOAEL
=620 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
NOAEL
=620 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
NOAEL
=1239 mg/kg/day
-
rat
NOAEL study
SCCS_vision_codex
NOAEL
=1239 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
NOAEL
=1239 mg/kg/day
-
rat
NOAEL study
SCCS_vision_codex
NOAEL
=1239 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
NOAEL
=1239 mg/kg/day
-
rat
NOAEL study
SCCS_vision_codex
NOAEL
=1239 mg/kg bw/day
oral
rat
repeated dose toxicity
SCCS_vision_codex
Safety Opinions
Official safety assessments from the Scientific Committee on Consumer Safety (SCCS) and Cosmetic Ingredient Review (CIR).
sccsSCCS/1660/2327 March 2024
Verdict: safe
NOAEL: 1239 mg/kg/day (not specified)
Max Concentration: 5% in general
ed to potential endocrine disrupting properties, the SCCS is of the opinion that benzophenone-4 is safe when used as UV filter up to a maximum concentration of 5% in sunscreen, face and hand cream, all leave-on and rinse-off products (total dermal aggregate), lipstick, sunscreen propellant spray and
sccsSCCS/1660/2327 March 2024
Verdict: safe
NOAEL: 1239 mg/kg/day (not specified)
Max Concentration: 5% in leave-on
ed to potential endocrine disrupting properties, the SCCS is of the opinion that benzophenone-4 is safe when used as UV filter up to a maximum concentration of 5% in sunscreen, face and hand cream, all leave-on and rinse-off products (total dermal aggregate), lipstick, sunscreen propellant spray and
sccsSCCS/1660/2327 March 2024
Verdict: safe
NOAEL: 1239 mg/kg/day (not specified)
Max Concentration: 0.015% in spray/aerosol
ed to potential endocrine disrupting properties, the SCCS is of the opinion that benzophenone-4 is safe when used as UV filter up to a maximum concentration of 5% in sunscreen, face and hand cream, all leave-on and rinse-off products (total dermal aggregate), lipstick, sunscreen propellant spray and
sccsSCCS/1660/2327 March 2024
Verdict: safe
NOAEL: 1239 mg/kg/day (not specified)
Max Concentration: 5% in spray/aerosol
ed to potential endocrine disrupting properties, the SCCS is of the opinion that benzophenone-4 is safe when used as UV filter up to a maximum concentration of 5% in sunscreen, face and hand cream, all leave-on and rinse-off products (total dermal aggregate), lipstick, sunscreen propellant spray and
sccsSCCS/1660/2327 March 2024
Verdict: safe
NOAEL: 1239 mg/kg/day (not specified)
Max Concentration: 10% in eye area
ed to potential endocrine disrupting properties, the SCCS is of the opinion that benzophenone-4 is safe when used as UV filter up to a maximum concentration of 5% in sunscreen, face and hand cream, all leave-on and rinse-off products (total dermal aggregate), lipstick, sunscreen propellant spray and
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for Sulisobenzone (Benzophenone-4) across SCCS product categories, with measured dermal absorption where available.
EPA ToxValDB — Toxicity Values
1 toxicity value from EPA ToxValDB (aggregated from CCTE, HPV, ToxRefDB, IRIS, and other regulatory dossiers).
Endpoint
Value
Species
Route
Duration
Source
LD50
=3530 mg/kg
Rat
oral
-
ChemIDplus
Endocrine Disruptor Evidence (Expanded)
Cross-referenced EDC classifications, mechanism data, and dose-response evidence from EDLists, SIN List, and cosmetic-specific detail sources.
Under investigationEvidence: Limited(2024)
Health effects:Yes
Affected pathways:Estrogenic, Thyroid
Regulatory framework:Cosmetics
Source list: II (former)
Cosmetic-Specific Mechanism
Category:UV filter
Receptor targets:ERα, ERβ, AR
LOEC:1 µM
EU status:restricted (max 5%); SCCS/1660/23 – safe at ≤5%
agonist (ERα, ERβ); antagonist (AR)
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
KR Korea MFDS Annex 2 (Restricted)
Category: UV Filter. Max: 5%.
JPKR Japan/Korea Cosmetics
Korea (Restricted): max 5.0
Additional Jurisdictional Restrictions (2)
Jurisdiction
Status
Max %
Product Type
CN
permitted_uv_filter
5
All cosmetics
ASEAN
permitted_uv_filter
5% as acid
-
Expanded Dermal Absorption Data
Cross-database dermal penetration: EPA Dryad physics-based, Roberts Mendeley permeation, and SCCS-aggregated measured values.
Aggregated DA Values (5 records across 5 sources)
Type
DA %
Method
Skin Model
SCCS Ref
measured
0.8
method=measured
-
-
measured
5.9
method=measured
-
-
measured
0.145
method=measured
-
-
measured
6.18
method=measured
-
-
measured
0.05
method=measured
-
-
Additional Ingredient Properties
1 property record from structured ingredient metadata.
2-Hydroxy-4-methoxy-5-sulfobenzophenoneBenzenesulfonic acid, 5-benzoyl-4-hydroxy-2-methoxy-Benzophenone 42-Hydroxy-4-methoxybenzophenone-5-sulfonic acidBRN 2889165EINECS 223-772-2Uvinuc ms 40UNII-1W6L629B4K
Chemical Function
UV stabilizerFragrance
Regulatory Lists
inert_ingredient; non_food_use; PesticidesIFRA TransparencyCanada; consumer_product; Substances in Products - Canada (4/2014)children; Europe; Personal care - body hygiene - body washchildren; Europe; Personal care - hair styling and care - shampoochildren; Europe; Personal carechildren; Europe; Personal carepharmaceuticalCanada; pharmaceutical
Australian Status
AICIS status:listed
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical data.
SOURCEChEMBL / DrugCentral / FAERSDB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
Is Sulisobenzone (Benzophenone-4) safe in cosmetics?
Sulisobenzone (Benzophenone-4) has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: restricted. 10 toxicological study endpoint(s) are available in our database. This ingredient has been reviewed by sccs.
Is Sulisobenzone (Benzophenone-4) allowed in the EU?
Sulisobenzone (Benzophenone-4) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Sulisobenzone (Benzophenone-4) do in cosmetics?
Sulisobenzone (Benzophenone-4) functions as: UV Filter. It is classified as a UV Filter / Sunscreen in our database. CAS number: 4065-45-6.
What is the NOAEL for Sulisobenzone (Benzophenone-4)?
The NOAEL (No Observed Adverse Effect Level) for Sulisobenzone (Benzophenone-4) is =620 mg/kg bw/day based on a repeated dose toxicity study via oral route in rat. A total of 10 study endpoints are available. Source: SCCS_vision_codex.
Is Sulisobenzone (Benzophenone-4) used outside cosmetics?
Sulisobenzone (Benzophenone-4) also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does Sulisobenzone (Benzophenone-4) have different safety status in cosmetics vs industrial chemicals?
Sulisobenzone (Benzophenone-4) is classified GHS Danger (H315, H317, H318, H319, H335) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check Sulisobenzone (Benzophenone-4) compliance across multiple jurisdictions:
Is Sulisobenzone (Benzophenone-4) in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Sulisobenzone (Benzophenone-4) in your formulation.