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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method

Test material

Constituent 1
Chemical structure
Reference substance name:
5-oxo-L-proline, compound with L-arginine (1:1)
EC Number:
260-081-5
EC Name:
5-oxo-L-proline, compound with L-arginine (1:1)
Cas Number:
56265-06-6
Molecular formula:
C6H14N4O2.C5H7NO3
IUPAC Name:
5-oxo-L-proline, compound with L-arginine (1:1)
Test material form:
liquid

Results and discussion

Water solubilityopen allclose all
Key result
Water solubility:
> 609.4 - < 618.6 g/L
Conc. based on:
test mat.
Loading of aqueous phase:
1 000 g/L
Incubation duration:
72 h
Temp.:
20 °C
pH:
> 7.13 - < 7.18
Key result
Water solubility:
> 617.9 - < 627.4 g/L
Conc. based on:
test mat.
Loading of aqueous phase:
1 000 g/L
Incubation duration:
48 h
Temp.:
20 °C
pH:
> 7.13 - < 7.18
Key result
Water solubility:
> 594.5 - 615.3 g/L
Conc. based on:
test mat.
Loading of aqueous phase:
1 000 g/L
Incubation duration:
ca. 24 < h
Temp.:
20 °C
pH:
> 7.13 - < 7.18

Applicant's summary and conclusion

Conclusions:
The solubility in water was found to be > 614 g/L.
Executive summary:

The solubility in water was measured according to OECD 105 method. The solubility in water was found to be > 614 g/L.