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REACH

Reaction mass of sodium(E)-6,7'-carbonylbis(azanediyl)bis(4-hydroxy-3-((E)-phenyldiazenyl) naphthalene-2-sulfonate) and disodium 3-[(4-acetamidophenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl]amino]carbonyl]amino]naphthalene-2-sulphonate and disodium 7,7'-(carbonyldiimino)bis[4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate]

EC number: 939-268-7 | CAS number: -

Life Cycle description
Uses advised against

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

BCF has not been tested because Direct Red 23 (DR23), based on the estimated log Kow, has a low potential for bioaccumulation and/or a low potential to cross biological membranes. The estimated value of DR23’s neutral form was 3.162 L/kg wet-wt, calculated by software EpiSuite 4.1., the suite of physical/chemical property and environmental fate estimation programs developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC).

The partition coefficient of 0.0019 (R&C, 2012), as reported under 4.7 Partition Coefficient end point, confirms this provisional consideration, leading to the conclusion that DR23 is not expected to be bioaccumulable.

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