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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Bioaccumulation: aquatic/sediment

The bioaccumulation study in fish was conducted for estimating the BCF (bioaccumulation factor) value of test chemical (2E)-2 -(phenylmethylidene)heptanal (CAS no. 122-40-7). The bioaccumulation factor (BCF) value was calculated using an estimated log Kow of 4.07 and a regression derived equation. The BCF (bioaccumulation factor) value of (2E)-2 -(phenylmethylidene)heptanal was determined to be 586 dimensionless, which does not exceed the bioconcentration threshold of 2000, indicating that the chemical (2E)-2 -(phenylmethylidene)heptanal is considered to be non-accumulative in aquatic organisms.

Additional information

Bioaccumulation: aquatic/sediment

Experimental study and various predicted data for the target compound (2E)-2 -(phenylmethylidene)heptanal (CAS No. 122-40-7) and various supporting studies for its read across substance were reviewed for the bioaccumulation end point which are summarized as below:

 

In an experimental key study from authoritative database (HSDB, 2017), bioaccumulation experiment in fish was conducted for estimating the BCF (bioaccumulation factor) value of test chemical (2E)-2 -(phenylmethylidene)heptanal (CAS no. 122-40-7). The bioaccumulation factor (BCF) value was calculated using an estimated log Kow of 4.07 and a regression derived equation. The BCF (bioaccumulation factor) value of (2E)-2 -(phenylmethylidene)heptanal was determined to be 586 dimensionless.

 

In aprediction done using theBCFBAF Program(v3.01) of Estimation Programs Interface (EPI Suite, 2017) was used to predict the bioconcentration factor (BCF) of test chemical (2E)-2-(phenylmethylidene)heptanal (CAS No. 122 -40 -7). The bioconcentration factor (BCF) of (2E)-2-(phenylmethylidene)heptanal was estimated to be 334 L/kg whole body w.w (at 25 deg C).

 

SciFinder database (American Chemical Society (ACS), 2017) was used for predicting the bioconcentration factor (BCF) of test chemical (2E)-2-(phenylmethylidene)heptanal (CAS No. 122 -40 -7). The bioconcentration factor (BCF) of (2E)-2-(phenylmethylidene)heptanal was estimated to be 1200 (at 25 deg C).

 

In a supporting study from authoritative database (HSDB, 2017) for the read across chemical Benzaldehyde (CAS no. 100-52-7), bioaccumulation experiment in fish was conducted for estimating the BCF (bioaccumulation factor) value of read across chemical benzaldehyde. The bioaccumulation factor (BCF) value was calculated using a log Kow of 1.48 and a regression derived equation. The BCF (bioaccumulation factor) value of benzaldehyde was determined to be 4.4 dimensionless.

 

Another bioaccumulation study in fish was conducted for estimating the BCF (bioaccumulation factor) value of read across chemical (2E)-3 -phenylprop-2 -enal (CAS no. 104 -55 -2) (HSDB, 2017). The bioaccumulation factor (BCF) value was calculated using a log Kow of 1.9 and a regression derived equation. The BCF (bioaccumulation factor) value of (2E)-3 -phenylprop-2 -enal was determined to be 8 dimensionless.

 

In a supporting study from authoritative database (J-CHECK, 2017) for the read across chemical 4-butylbenzaldehyde (CAS no. 1200-14-2), bioaccumulation experiment was conducted on test organism Cyprinus carpio for 6 weeks for evaluating the bioconcentration factor (BCF value) of substance 4 -butylbenzaldehyde under static conditions. Test chemical nominal conc. used for the study were 0.05 mg/l and 0.005 mg/l (w/v), respectively. Range finding study involve the TLm (48 hr) 64.2 mg/l on Rice fish (Oryzias latipes). Lipid content of the test organism was determined to be 3.8%.The bioconcentration factor (BCF value) of substance 4 -butylbenzaldehyde on Cyprinus carpio was determined to be < 2.4 L/Kg at a conc. of 0.05 mg/l and < 24 L/Kg at a conc. of 0.005 mg/l, respectively.

 

On the basis of above results for target chemical(2E)-2-(phenylmethylidene)heptanal(from authoritative database HSDB, EPI suite and Scifinder,2017) and for its read across substance (from authoritative database HSDB and J-CHECK, 2017), it can be concluded that the BCF value of test substance(2E)-2-(phenylmethylidene)heptanal ranges from 586 – 1200 which does not exceed the bioconcentration threshold of 2000, indicating that the chemical (2E)-2-(phenylmethylidene)heptanal is not expected to bioaccumulate in the food chain.