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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

PBT assessment

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Administrative data

PBT assessment: overall result

valeryl chloride SIP
Type of composition:
boundary composition of the substance
State / form:
Reference substance:
valeryl chloride SIP
PBT status:
the substance is not PBT / vPvB

Valeryl chloride (CAS 638 -29 -9) rapidly hydrolyzes (T1/2 < 12 hours) and decomposes in water into the main products valeric acid (CAS 109 -52 -4) and HCl (CAS 7647-01-0). The PBT/vPvB criteria do not apply to inorganic substances, HCl is not assessed with regard to PBT/vPvB properties; therefore, the PBT/vPvB assessment is mainly based on data for valeryl chloride and its organic hydrolysis product valeric acid (CAS 109 -52 -4).

Since valeric acid is readily biodegradable (according to OECD criteria) it should be regarded as not P/vP. The substance is not B/vB since valeryl chloride itself and its hydrolysis product valeric acid have a log Kow less than 3 (see IUCLID chapter 4.7).

Due to the rapid hydrolysis of the parent compound valeryl chloride (CAS 638 -29 -9) and in absence of chronic toxicity data for the compound itself, the assessment of T properties is based on the hydrolysis product valeric acid (CAS 109 -52 -4). No chronic toxicity data are availabe. However, valeric acid is not T since the lowest available acute value is >> 0.1 mg/L (Algae: 72 -h EC50: 31.3 mg/L, Read-across Analysis, QSAR Toolbox v4.4) and the substance holds no relevant classification.

In conclusion, the parent compound valeryl chloride (CAS 638 -29 -9) is considered to be neither PBT nor vPvB, based on the available data for the hydrolysis product valeric acid (CAS 109 -52 -4).