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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hazard for aquatic organisms

STP

Hazard assessment conclusion:
no hazard identified

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
33.3 mg/kg food
Assessment factor:
300

Additional information

Conclusion on classification

Classification related key information

Water solubility: < 0.08 mg/L at 20 °C (OECD 105)

Biodegradation:       11% biodegradation after 28 days (OECD 301B)

Bioaccumulation:     log Kow 7.7 (potential for bioaccumulation)

Acute aquatic toxicity:

Fish:96 h, LC50 (Cyprinus carpio): > 100 mg/L (nominal); > 0.015 mg/L (measured) (ISO 7346-1)

Aquatic invertebrates:48 h, EC50 (Daphnia magna): > 100 mg/L (nominal); > 0.019 mg/L (measured) (ISO 6341-15)

Algae:72 h, EC50 (Selenastrum capricornutum): > 100 mg/L (nominal); > 0.01 mg/L (measured) (ISO 8692)

Chronic toxicity:

Algae:72 h, NOEC (Selenastrum capricornutum): ≥ 100 mg/L (nominal); ≥ 0.01 mg/L (measured) (ISO 8692)

Classification according to CLP

UC-141 is poorly soluble in water (water solubility < 0.08 mg/L) and no toxicity to aquatic organisms was observed in fish, aquatic invertebrates or algae. Nevertheless, the substance is not rapidly degradable and has a high potential for bioaccumulation. Therefore UC-141 is classified as Aquatic Chronic Category 4 (Safety net classification) according to the 2ndATP of Regulation (EC) No. 1272/2008 (CLP).       

M-factor for acute aquatic toxicity: No classification for acute aquatic toxicity

M-factor for chronic aquatic toxicity: No need to be assigned in this classification category

Classification according to DSD

UC-141 is poorly soluble in water (water solubility < 0.08 mg/L) and no acute toxicity to aquatic organisms was observed in fish, aquatic invertebrates or algae. Nevertheless, the substance is not rapidly degradable and has a high potential for bioaccumulation. Therefore, UC-141 is classified as R53 according to Directive 67/548/EEC (DSD).