Di[2-[4-[(E)-2- [2,4,5-trimethoxyphenyl]vinyl]pyridinin-1-ium]butanoyl]aminoethyl]disulfanyl dichloride

Di[2-[4-[(E)-2- [2,4,5-trimethoxyphenyl]vinyl]pyridinin-1-ium]butanoyl]aminoethyl]disulfanyl dichloride in plain language

What it is

On cosmetic ingredient lists it appears as “Hc yellow no. 17”.

Also known as Hc yellow no. 17 · Hc yellow no 17

What it does

Used in cosmetics as a hair dye. HC Yellow No. 17 is the hair colorant.

• Hair dyeing
• Colourant

Is it a concern?

High concern: no hazard classifications on record. It is restricted in EU cosmetics.

Why it's flagged

Di[2-[4-[(E)-2- [2,4,5-trimethoxyphenyl]vinyl]pyridinin-1-ium]butanoyl]aminoethyl]disulfanyl dichloride 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.

• EU Annex III — restricted
• EU restricted in cosmetics

• EU·EC

  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: Hair dye substance in non-oxidative hair dye products Maximum concentration: As from 3 September 2017: 0,5 % Conditions of use and warnings: As from 3 March 2018: “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 experi­enced any…

  restricted
  View source →

• EU·CosIng·Active2 entries

  • Cosmetics Regulation annex III / ref 299.Source →
  • HC Yellow No. 17 is the hair colorant that conforms to the formula Restriction: III/299Source →
• US·EPA·commercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Dye.

  • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Dye.Source →

Expert safety opinions

No expert opinion on file for Di[2-[4-[(E)-2- [2,4,5-trimethoxyphenyl]vinyl]pyridinin-1-ium]butanoyl]aminoethyl]disulfanyl dichloride. 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.