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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

sediment toxicity: long-term
short-term and long- term
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
Justification for type of information:
Conclusion based on structure analogy: The target substance, pitch, coal tar, high-temp., <1% 4- to 5-membered condensed ring aromatic hydrocarbons [EC no. 701-305-8] (CTPhtht), is directly derived from pitch, coal tar, high temp. [CAS no. 65996-93-2] (CTPht) by additional distillation processing. Hence, both complex substances still share similar structure and similar phys.-chem. properties; but thanks to the decrease in the fraction of lower PAHs and the concomitant increase in degree of condensation of ring-structures in CTPhtht, its bioavailability is further reduced as compared with the precursor. Furthermore, neither substance exhibited noticeable short-term aquatic toxicity (EL/LL50 > 100 mg/L), while there was no evidence of long-term aquatic toxicity for the precursor, CTPht, hence either to be supposed for the target compound.


Data source

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Pitch, coal tar, high-temp., heat-treated
EC Number:
EC Name:
Pitch, coal tar, high-temp., heat-treated
Cas Number:
Molecular formula:
not applicable
Pitch, coal tar, high-temp., heat-treated

Results and discussion

Applicant's summary and conclusion