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InventoryRef 3216206/08/2020

BENZYLIDENE CAMPHOR SULFONIC ACID

alpha-(2-Oxoborn-3-ylidene)toluene-4 sulphonic acid

BENZYLIDENE CAMPHOR SULFONIC ACID is linked to 1 EU annex record on this page. Inventory note: VI/9.

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Regulatory evidence by market

This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.

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MarketEvidence statusRecordsSource language
European UnionEvidence linked
Positive-list entry with conditions
Open this evidence		1English and EU languages
Great BritainEvidence linked
Permitted list with conditions
Open this evidence		1English
CanadaSource mapped
Official source mapped; ingredient rule not imported
0English and French
New ZealandEvidence linked
Permitted list with conditions
Open this evidence		1English
ASEANEvidence linked
Permitted list with conditions
Open this evidence		1English and national languages
ChinaSource mapped
Official source mapped; ingredient rule not imported
0Chinese with selected English material
JapanSource mapped
Official source mapped; ingredient rule not imported
0Japanese; official English translation available
South KoreaSource mapped
Official source mapped; ingredient rule not imported
0Korean with some English names
United StatesSource mapped
Official source mapped; ingredient rule not imported
0English
AustraliaSource mapped
Official source mapped; ingredient rule not imported
0English
BrazilSource mapped
Official source mapped; ingredient rule not imported
0Portuguese with INCI crosswalks
IndiaSource mapped
Official source mapped; ingredient rule not imported
0English and Hindi
Saudi ArabiaSource mapped
Official source mapped; ingredient rule not imported
0Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 56039-58-8
CAS 56039-58-8PubChem CID 15349051

Benzylidene camphor sulfonic acid

IUPAC name
4-[(E)-(4,7,7-trimethyl-3-oxo-2-bicyclo[2.2.1]heptanylidene)methyl]benzenesulfonic acid
Molecular formula
C17H20O4S
Molecular weight
320.4 g/mol
Exact mass
320.10823029 Da
XLogP3
2.9
Topological polar surface area
79.8 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

MEXORYL SLBG521Q2MGT4'-sulfo-3-benzylidenecamphorP-((2-OXO-3-BORNYLIDENE)METHYL)BENZENESULFONIC ACIDBenzenesulfonic acid, 4-((4,7,7-trimethyl-3-oxobicyclo(2.2.1)hept-2-ylidene)methyl)-UNII-BG521Q2MGTRefChem:1997894-((4,7,7-Trimethyl-3-oxo-bicyclo(2.2.2)hept-2-ylidene)methyl)benzenesulfonic acid
6 more reported names
4-((4,7,7-Trimethyl-3-oxobicyclo(2.2.1)hept-2-ylidene)methyl)benzenesulfonic acid(+-)-BENZYLIDENE CAMPHOR SULFONIC ACIDBENZYLIDENE CAMPHOR SULFONIC ACID [INCI]BENZYLIDENE CAMPHOR SULFONIC ACID, (+-)-(+/-)-BENZYLIDENE CAMPHOR SULFONIC ACIDBENZYLIDENE CAMPHOR SULFONIC ACID, (+/-)-
Open full PubChem recordPubChem annotations3D structure image

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for BENZYLIDENE CAMPHOR SULFONIC ACID

INCI name

BENZYLIDENE CAMPHOR SULFONIC ACID

Description

alpha-(2-Oxoborn-3-ylidene)toluene-4 sulphonic acid

Record provenance

Inventory reference
32162
Imported identity
BENZYLIDENE CAMPHOR SULFONIC ACID
Source update
06/08/2020
European Commission CosIng source notes

Key data

CAS
56039-58-8
EC
—
Restriction
VI/9
Function
LIGHT STABILIZER
Protecting the cosmetic product from deterioration effects of light.
UV ABSORBER
Protecting the cosmetic product from the effects of UV-light.
UV FILTER
Exclusively or mainly intended to protect the skin and/or hair against certain UV radiation by absorbing, reflecting or scattering UV radiation. All authorised UV filters are substances in the positive list of Annex VI to the Cosmetics Regulation 1223/2009.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#3267 · BENZYLIDENE CAMPHOR SULFONIC ACID

Ingredients with overlapping formulation functions

BACILLUS LYSATESKIN PROTECTING, UV FILTER
BENZOPHENONE-3LIGHT STABILIZER, UV ABSORBER, UV FILTER
BENZOPHENONE-4LIGHT STABILIZER, UV ABSORBER, UV FILTER
BENZOPHENONE-5LIGHT STABILIZER, UV ABSORBER, UV FILTER
BIS-(DIETHYLAMINOHYDROXYBENZOYL BENZOYL) PIPERAZINEUV FILTER
BIS-ETHYLHEXYLOXYPHENOL METHOXYPHENYL TRIAZINEHAIR CONDITIONING, LIGHT STABILIZER, UV ABSORBER, UV FILTER
BIS-METHANEUV FILTER
BIS-PABA PORPHYRA 334ANTIOXIDANT, LIGHT STABILIZER, UV FILTER

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How BENZYLIDENE CAMPHOR SULFONIC ACID appears in the CosIng inventory

The CosIng inventory lists BENZYLIDENE CAMPHOR SULFONIC ACID as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

BENZYLIDENE CAMPHOR SULFONIC ACID is also tagged with 3 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

BENZYLIDENE CAMPHOR SULFONIC ACID appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for BENZYLIDENE CAMPHOR SULFONIC ACID reads: "VI/9". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, BENZYLIDENE CAMPHOR SULFONIC ACID carries the following function designation(s):

CAS 56039-58-8 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.
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Source note for BENZYLIDENE CAMPHOR SULFONIC ACID

This page combines the CosIng inventory entry for BENZYLIDENE CAMPHOR SULFONIC ACID with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research BENZYLIDENE CAMPHOR SULFONIC ACID and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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