Registration Dossier
Registration Dossier
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EC number: 226-247-6 | CAS number: 5333-84-6
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
Tetrahydromethylphthalic anhydride (MTHPA), of which 3-MTHPA D4 is an isomer, was found to hydrolyse fast in just a few minutes (calculated half-lives) at all three temperatures tested (5, 20, 25 degree C) at pH 4, pH 7 and pH 9.
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 0.06 h
- at the temperature of:
- 293.2 K
Additional information
Tetrahydromethylphthalic anhydride (MTHPA), of which 3 -MTHPA D4 is an isomer, hydrolyses rapidly in water to form the corresponding di-acid. Half-lives at 20 degrees C were below 3.5 minutes at pH 4, 7 and 9.
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