beauty
cleaning
industrial

Acid red 52

CAS 3520-42-1 · 70/100 · High conf.

Colorant · Dye · Fragrance

Concern score

70/100High concern based on regulatory listings.

Well researched

Why it's flagged

Hydrogen 3,6-bis(diethylamino)-9-(2,4-disulphonatophenyl)xanthylium, sodium salt; CI 45100 (see note 17) is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — restricted

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

Restrictions first, then routine listings from published regulatory sources.

commercial_presence
consumer_product_presence
cpdat_category:beauty|cleaning|industrial
definition_level:complete
definition_type:primary
eu_annex:III
eu_annex:IV
eu_cosmetic_allowed_colorant

EUEC
Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products Maximum concentration: (b) 0.6% Other conditions: (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1.5%. Conditions of use and warnings: a) To be printed on the label: The mixing ratio. “ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp,— you have ever…
restricted
View source →

EUECallowed_listedAnnex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Maximum concentration: Rinse-off products
- Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Maximum concentration: Rinse-off productsSource →
USEPAcommercial use observedEPA CPDat observed this chemical in 71 composition records across product categories including Laboratory supplies, Raw materials, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Dye, Fragrance.
- EPA CPDat observed this chemical in 71 composition records across product categories including Laboratory supplies, Raw materials, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Dye, Fragrance.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Evidence

No graded sources yet for Acid red 52. We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.

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

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it appears

Prevalence of Acid red 52 in our catalog (epa_cpdat).

Products

Brands

Laboratory suppliesRaw materialsCleaning and safetyCleaning products and household careVehicleLandscape/yard

Typical roles

ColorantDyeFragrance

See products using Acid red 52 →

Catalog

Found in these products

11 products

Why it's flagged

RestrictedEU EC — restricted

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.