Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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REACH

Reaction mass of sodium 7-hydroxy-8-((E)-(4-(1-(4-((E)-(4-hydroxyphenyl)diazenyl)phenyl)cyclohexyl)phenyl)diazenyl)naphthalene-1,3-disulfonate and sodium 8,8'-(1E,1'E)-(4,4'-(cyclohexane-1,1-diyl)bis(4,1-phenylene))bis(diazene-2,1-diyl)bis(7-hydroxynaphthalene-1,3-disulfonate)

EC number: 943-526-4 | CAS number: -

Life Cycle description
Uses advised against

Toxicological information

Endpoint summary

Administrative data

Description of key information

Not skin sensitising.

Key value for chemical safety assessment

Skin sensitisation

Endpoint conclusion

Endpoint conclusion:: no adverse effect observed (not sensitising)

Respiratory sensitisation

Endpoint conclusion

Endpoint conclusion:: no study available

Justification for classification or non-classification

According to the CLP Regulation (EC 1272/2008), 3.4 Respiratory or skin sensitisation section, skin sensitizer means a substance that will lead to an allergic response following skin contact.

In case of an adjuvant type test method Guinea pig maximisation test is used, a response of at least 30 % of the animals is considered as positive.

Under the experimental conditions employed, 0 % of the animals of the test group showed skin reactions 24 and 48 hours after removing the dressings.

In conclusion, the substance does not meet the criteria to be classified as skin sensitising, according to the CLP Regulation (EC 1272/2008).

Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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