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EC number: 607-759-2
CAS number: 25618-55-7
The substance will slowly hydrolyse under environmental conditions.
Since no studies investigating the abiotic hydrolysis of 1,2,3
-Propanetriol, homopolymer (CAS 25618-55-7) are available, in accordance
to Regulation (EC) No 1907/2006 Annex XI, 1.5 a read across to the
structurally related analogue substance Reaction mass of
No. 915-741-3, Polyglycerol-3) was conducted. This read-across is
justified in detail in the overall endpoint summary in IUCLID Section 5.
The key study was performed according to OECD guideline 111 under
GLP conditions (Brekelmans 2009). The test was performed over an
exposure time of 214.5 h. An initial test concentration of 500 mg/L was
measured. The half-life time of the major constituents in Polyglycerol-3
(diglycerol and triglycerol) at pH values normally found in the
environment (pH 4-9) at 25 °C were determined to be > 1 year.
Based on structural similarity, it is expected that these
half-life times also apply for 1,2,3-Propanetriol, homopolymer (CAS
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