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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Neopentyl glycol dicaprate (CAS No. 27841-06-1) is characterised bylow water solubility (< 2.4 µg/L at 20 °C, pH 6.3; OECD 105, column elution method), low volatilization potential (vapour pressure <1.0E-04 Pa at 20 °C, SPARC v4.6) and a high log Koc (KOCWIN v2.00; MCI method: 5.2567; log Pow based estimate: 6.115), indicating a high adsorption potential to soil and sediment particles. Furthermore, the substance is considered readily biodegradable based on the results of structurally related read-across substances (> 90% biodegradation after 28 days; OECD 301B). Thus, it is expected that an extensive elimination of the substance in sewage treatment plants will occur.

According to the Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.7b (ECHA, 2017), the ready biodegradability of a substance can be considered indicative of rapid and ultimate degradation in most environments, including biological sewage treatment plants (STP) where the substance will be extensively removed in the primary settling tank and fat trap. As a result of the high adsorption potential of the substance (KOCWIN v2.00; MCI method: log Koc=5.2567; log Pow based estimate: log Koc=6.115), a removal from the water column to a significant degree by adsorption to sewage sludge can be expected (Guidance on information requirements and chemical safety assessment, Chapter R.7b, (ECHA, 2017)). Thus, only limited amounts will get in contact with activated sludge organisms in STPs and the concentration of the substance in effluents of conventional STPs is presumably marginal.

However, when released to the environment sediment and soil are expected to be the main compartments for environmental distribution. Due to ready biodegradability, abiotic degradation via hydrolysis is considered not relevant for the substance. Moreover, the substance is not volatile (vapour pressure <1.0E-04 Pa at 20 °C, SPARC v4.6) and thus evaporation to the air and the transport through the atmospheric compartment is not likely. A bioaccumulation or biomagnification of Neopentyl glycol dicaprate (CAS No. 27841-06-1) through the food chain of the substance is not expected.