Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1.7 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.17 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.1 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
1 798.2 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.64 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:
0.25 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
1 666.7 mg/kg food
Assessment factor:
30

Additional information

Conclusion on classification

The acute short-term fish, crustacean and algae toxicity of (R)-(-)-butane-1,3-diol is predicted to be L(E)C50 of greater than 100 mg/L; this is in excess of the acute classification cut-off of 1 mg/L.

 

The chronic long-term daphnid toxicity of the readily biodegradable (R)-(-)-butane-1,3-diol is predicted to be 21-day NOEC of greater than 85 mg/L; this is in excess of the chronic classification cut-off of 1 mg/L.

 

There is no evidence that (R)-(-)-butane-1,3-diol may present a danger to the structure and/or the functioning of the stratospheric ozone layer.

 

Based on the information summarized above, (R)-(-)-butane-1,3-diol does not meet the criteria for classification as an environmental hazard, nor does it meet the criteria for classification as a hazard to the ozone layer according to sections 4 and 5. of the European CLP (Regulation (EC) No 1272/2008 as amended).