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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.001 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.011 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
20 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.151 mg/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:
0.301 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
33.33 mg/kg food
Assessment factor:
90

Additional information

Conclusion on classification

Biodegradation: not readily biodegradable: 0% in 28 d (OECD 302C)

 

Bioaccumulation: BCF = 159 (OECD 305, read across) 

 

Aquatic short-term toxicity

96 h, LC50 (Brachydanio rerio): 1.1 mg/L (EU method C.1, read across)

48 h, EL50 (Daphnia magna): 2.7 mg/L (EU method C.2, read across)

72 h, ErC50 (Desmodesmus subspicatus): 498.32 mg/L (OECD 201) 

 

Aquatic long-term toxicity

91d, NOEC (Oncorhynchus mykiss): 0.006 mg/L (ASTM E 1241-05, read across)

21 d, NOEL (Daphnia magna): 0.189 mg/L (OECD 211, read across)

72 h, NOEC (Desmodesmus subspicatus): 101.2 mg/L (OECD 201)

 

CLP

Based on the data above, 5-(C11-C12 alkyl, branched)-2-hydroxy-benzaldehyde is not considered to be rapidly degradable. The bioaccumulation potential is low. Acute aquatic toxicity was observed to be above 1 mg/L. Valid chronic data are available with a NOELR (72 h) of 101.2 mg/L for Desmodesmus subspicatus, a 21d-NOEL of 0.189 mg/L for Daphnia magna and a 91d-NOEC of < 0.1 mg/L (= 0.006 mg/L) for Danio rerio tested with the read across substance Phenol,4 -nonyl-,branched (CAS 84852-15-3). Therefore, 5-(C11-C12 alkyl, branched)-2-hydroxy-benzaldehyde needs to be classified and labelled as environmental hazard Chronic Cat. 1 (M = 10) according to the 2nd ATP of the Regulation (EC) No.1272/2008 (CLP).

 

DSD

The acute toxicity is between 1 and 10 mg/L and the substance is not readily biodegradable. Therefore, 5-(C11-C12 alkyl, branched)-2-hydroxy-benzaldehyde needs to be classified and labelled as environmental hazardous (R51/53) according to Directive 67/548/EEC.