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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1990
Report date:
1990

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 111 (Hydrolysis as a Function of pH)
Deviations:
not specified
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Acetoacetanilide
EC Number:
202-996-4
EC Name:
Acetoacetanilide
Cas Number:
102-01-2
Molecular formula:
C10H11NO2
IUPAC Name:
3-oxo-N-phenylbutanamide
Details on test material:
Acetessiganilid TTR Chargen-Nr.: C 332

Study design

Analytical monitoring:
yes
Buffers:
KCl/HCl-Buffer at pH 1.5
Details on test conditions:
Methanol as vehicle is used for preparation of stock solution
Duration of test
Duration:
167.5 h
pH:
1.5
Temp.:
37 °C
Initial conc. measured:
209.3 mg/L

Results and discussion

Transformation products:
yes
Identity of transformation products
No.:
#1
Reference
Reference substance name:
Unnamed
IUPAC name:
aniline
Inventory number:
InventoryMultipleMappingImpl [inventoryEntryValue=EC 200-539-3]
CAS number:
62-53-3
Identity:
Benzenamine
Molecular formula:
C6H7N
Molecular weight:
93.126
SMILES notation:
Nc1ccccc1
InChl:
InChI=1/C6H7N/c7-6-4-2-1-3-5-6/h1-5H,7H2
Total recovery of test substance (in %)open allclose all
% Recovery:
ca. 99.33
pH:
1.5
Temp.:
37 °C
Duration:
ca. 95.5 h
% Recovery:
ca. 96.46
pH:
1.5
Temp.:
37 °C
Duration:
ca. 167.5 h
Dissipation DT50 of parent compoundopen allclose all
pH:
1.5
Temp.:
37 °C
DT50:
ca. 160.8 d
Remarks on result:
other: linear regression
pH:
1.5
Temp.:
37 °C
DT50:
ca. 131.4 d
Remarks on result:
other: linear regression

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The substance is very stable in water
Executive summary:

The substance is very stable in water and undergoes hydrolysis only very slowly.