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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The BCFs of the test substance ranged from less than 2.0 to 14 at Level 1 (test concentration 0.3 mg/L) and less than 15 to 37 at Level 2 (test concentration 0.03 mg/L).

Key value for chemical safety assessment

BCF (aquatic species):
37 dimensionless

Additional information

Bioaccumulation test of 3,4 -DMBS in common carp

Test conditions:

Acute toxicity test:

(1) Test fish: Ricefish (Oryzia latipes)

(2) Duration of exposure: 48 hours

(3) Exposure method: Semi-static system (Renewal of test water at every 8 - 16 hours)

Bioaccumulation test:

(1) Test fish: Common carp (Cyprinus carpio)

(2) Nominal concentrations of test substance:

High exposure level (Level 1): 0.3 mg/L

Low exposure level (Level 2): 0.03 mg/L

(3) Duration of exposure: 8 weeks

(4) Exposure method: Flow-through system

(5) Analytical method: High performance liquid chromatography


(1) 48 -hour LC50 value:≥100 mg/L

(2) Biocentration factors:

Level 1: 2.0 - 14

Level 2: 15 - 37


The test substance was stable under storage and test conditions.