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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Endpoint summary

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Administrative data

Description of key information

Additional information

The water solubility of the pigment in water is very low and no acute toxicity was observed. No chronic data are available for C.I. Pigment Yellow 34 or C.I.Pigment Red 104. As shown in the Transformation/Dissolution study, a small proportion of the parent substance may dissolve and release chromate ions (CrO42 -, determined as Cr ions) and lead ions (Pb2 +).

Data on lead and chromium are summarised below for aquatic invertebrates and fish.





Pimephales promelas


412d-NOECmort 1 mg/l

(most sensitive endpoint)

60d-NOECmort/growth rate 1 mg/l

412 days first generation + 60 days second generation

Pickering 1980

Daphnia magna

3wk-EC16 repro 330 µg/l

Biesinger & Christensen 1972


21d-NOEC repro 0.7 mg/l

Kuhn et al. 1989





Onchorhynchus mykiss

3 wk-LOEC 13 µg/l

Hematological effects

Hodson & Blunt 1978

Daphnia magna

3wk-EC16 repro 30 µg/l

Biesinger & Christensen 1972