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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.056 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.077 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.006 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.008 µg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
63.3 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
3.5 µg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.35 µg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
6.4 µg/kg soil dw
Assessment factor:
10
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Classification related key information

 

Biodegradation in water: not rapidly biodegradable (mineralisation 41.5% after 120 days)

Bioaccumulation: low bioaccumulation potential based on log Kow < 3

 

Acute aquatic toxicity

- Fish: LC50 (96 h) = 19.7 mg/L (mean measured, FIFRA Guideline 72-3, Cyprinodon variegatus)

- Aquatic invertebrates: EC50 (48 h) = 7.7 µg/L (nominal, OECD 202, Ecdyonurus sp.)

- Algae: ErC50 (96 h) = > 100 mg/L (nomial, OECD 201, Pseudokirchneriella subcapitata)

 

Chronic aquatic toxicity

- Fish: NOEC (96 d) = 244 µg/L (mean measured, OECD 210, Oncorhynchus mykiss)

- Aquatic invertebrates: NOEC (28 d) = 0.56 µg/L (nominal, OECD 233, Chironomus riparius)

- Algae: NOErC (72 h) = 32 mg/L (nominal, Pseudokirchneriella subcapitata, OECD 201)

 

Clasification justification according to CLP

Based on data above, 3-(2-chlor-5-pyridyl-methyl)-cyanimino-1,3-thiazolidin is considered not rapidly biodegradable. Acute and chronic toxicity data are available for three trophic levels i.e. fish, algae and aquatic invertebrates. Invertebrates were found to be the most sensitive trophic level in both acute and chronic tests with an EC50 (48 h) of 7.7 µg/L and a NOEC (28 d) of 0.56 µg/L.

The classification and labelling is based on harmonised classification (Annex VI, Regulation (EC) 1272/2008, Index-No: 613-325-00-3 and on own hazard assesssment.

Therefore, the substance needs to be classified as Aquatic Chronic 1 (H410) and Aquatic Acute 1 (H400) according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).

 

M-factor for acute: 100

M-factor for chronic toxicity: 100