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3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule

CAS 92761-26-7 · 20/100 · High conf.

Also registered as 1 other CAS number

90457-82-2

Concern score

20/100Minor concern based on regulatory listings.
High confidence

3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule in plain language

What it is

On cosmetic ingredient lists it appears as “Terephthalylidene dicamphor sulfonic acid”.

Also known as Terephthalylidene dicamphor sulfonic acid · Ecamsule · Mexoryl sx · Terephthalyliden e dicamphor sulfonic acid

What it does

Used in cosmetics as a UV filter and a light stabiliser.

  • UV filter
  • UV absorber
  • Light stabilizer
Is it a concern?
Minor concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

What the listings say

Permitted, with conditions — 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule appears on published "allowed" regulatory lists rather than on a restriction list.

3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule is listed in Annex VI of the EU Cosmetics Regulation (EC) 1223/2009 (UV filters allowed in cosmetic products).

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule appears in these published regulatory listings.

  • EU Annex VI — permitted UV filter
  • EU permitted UV filter

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • EUCosIngActive2 entries
    • Cosmetics Regulation annex VI / ref 7.Source →
    • Terephthalylidene Dicamphor Sulfonic Acid is the organic compound that conforms to the formula: Restriction: VI/7Source →
  • EUECallowed_listedAnnex VI of EU Cosmetics Regulation (EC) 1223/2009: UV filters allowed in cosmetic products. Maximum concentration: 10%(as acid)
    • Annex VI of EU Cosmetics Regulation (EC) 1223/2009: UV filters allowed in cosmetic products. Maximum concentration: 10%(as acid)Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 10 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including UV stabilizer.
    • EPA CPDat observed this chemical in 10 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including UV stabilizer.Source →

Expert safety opinions

No expert opinion on file for 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2010-10-26

    Open →

  • EPA Chemical and Products Database

    exposure · updated November 2014

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule in a product composition. These are source records, not Greenveil catalog products.

Source records

10

Named organisations

5

Personal care

Typical roles

UV filterUV absorberLight stabilizer
See products using 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule →

Catalog

Found in these products

Their ingredient lists include 3,3'-(1,4-Phenylenedimethylene) bis (7,7-dimethyl-2-oxobicyclo-[2.2.1] hept-1-ylmethanesulfonic acid) and its salts / Ecamsule; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 40 →Find products without it →