Registration Dossier
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EC number: 940-679-9 | CAS number: -
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
No study on bioaccumulation is available with the substance. Therefore, the bioaccumulation profile of H250 sulphonic acid was calculated using BCFBAF v3.01. The log BCF was 2.012 - 2.496. The BCF was determined to be 102.8-313.3 based on the Arnot-Gobas method (upper trophic). The experimantal data from LABS (CAS no: 85536-14-7) as supporting analogue substance was used to support the substance. The both results indicated a low potential for the test substances to bioaccumulate.
Key value for chemical safety assessment
Additional information
Benzenesulphonic acid, dimethyl-,mono C14-16-alkyl derivative (H250 sulphonic acid) is a UVCB. Based on structural and functional similarities, data on Benzenesulphonic acid, 4-C10-13-sec-alkyl derivatives (LABS; CAS no: 85536-14-7) being registered under REACH, LABS Na (CAS no: 68411-30-3) being registered under REACH and LAB (CAS no: 67774-74-7) being registered under REACH are suitable as supporting study in case where specific data on the substance is lacking.
The substance is a UVCB, therefore C11 and C16 were used as alkyl chain for QSAR calculation to cover whole constituents the substance.
The bioaccumulation profile of substance was calculated using EPIWIN (BCFBAF v3.01). The BCF was determined to be 102.8-313.3 based on the Arnot-Gobas method (upper trophic).The experimantal data from LABS (CAS no: 85536-14-7) as supporting analogue substance was used to support the substance. The bioaccumulation potential of a series of LAS substances was evaluated in flow-through studies with fathead minnows. BCF values ranged from between 2 and 1000 L/kg, with BCFs increasing with increasing alkyl chain lengths. The BCFs were 87 L/kg for a standard mixture typical of LAS in European detergent formulations (average alkyl chain length = C11.6) and 22 L/kg for a representative environmental sample (filtered Mississippi river water, average alkyl chain length = C10.8). Results show that the bioconcentration potential of LAS is low and is decreased by environmental processes such as biodegradation and absorption, which reduce aquatic concentrations.
Based on these calculations and data from analogue substance, H250 sulphonic acid has a low potential to bioaccumulate.
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