Registration Dossier
Registration Dossier
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EC number: 204-541-5 | CAS number: 122-40-7
Endpoint summary
Administrative data
Description of key information
Hydrolysis
Hydrolysis of (2E)-2-(phenylmethylidene)heptanal (CAS no. 122 -40 -7) is predicted using OECD QSAR toolbox version 3.4 (2017) with logKow as the primary descriptor. The estimated half-life of (2E)-2-(phenylmethylidene)heptanal was estimated to be 224 days, indicating that it is not hydrolysable.
Additional information
Hydrolysis
Predicted data for the target chemical (2E)-2-(phenylmethylidene)heptanal (CAS No. 122-40-7) and supporting study from authoritative database for its read across substance were reviewed for the hydrolysis end point which are summarized as below:
Hydrolysis of test chemical (2E)-2-(phenylmethylidene)heptanal (CAS no. 122 -40 -7) is predicted using OECD QSAR toolbox version 3.4 with logKow as the primary descriptor. The estimated half-life of (2E)-2-(phenylmethylidene)heptanal was estimated to be 224 days, indicating that it is not hydrolysable.
For the read across chemical 1,5-pentanedial (CAS no. 111-30-8), the half-life of the read across chemical 1,5-pentanedial was determined at different pH range. The study was performed according to OECD Guideline 111 (Hydrolysis as a Function of pH) at a temperature of 25°C. Chemical 1,5 -pentanedial was reported to be hydrolytically stable at pH 5 and 7 with decomposition at pH 9, respectively. The half-lives of 1,5 -pentanedial was determined to be 628, 394 and 63.8 days at pH 5, 7 and 9, respectively. Based on the half-life values, it is concluded that the chemical 1,5 -pentanedial is not hydrolysable.
On the basis of the above results for target chemical (2E)-2 -(phenylmethylidene)heptanal (fromOECD QSAR toolbox version 3.4, 2017) and for its read across substance (from authoritative database HSDB, 2017), it can be concluded that the target chemical (2E)-2 -(phenylmethylidene)heptanal is not hydrolysable.
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