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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 April 2010 - 15 November 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes
Type of method:
capillary method

Test material

Constituent 1
Chemical structure
Reference substance name:
4-amino-2-methylpyrimidine-5-methylamine
EC Number:
202-384-7
EC Name:
4-amino-2-methylpyrimidine-5-methylamine
Cas Number:
95-02-3
Molecular formula:
C6H10N4
IUPAC Name:
5-(aminomethyl)-2-methylpyrimidin-4-amine
Details on test material:
- Name of test material (as cited in study report): grewe-diamin
- Physical state: solid

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 120 - < 129 °C
Atm. press.:
1 atm
Decomposition:
no
Sublimation:
no

Applicant's summary and conclusion

Conclusions:
"Grewe-diamin" melted between 120 °C and 129 °C.
The difference between the temperature at the beginning and at the final stage of melting is not within the limits of the accuracy of the method
(+-0.5 °C) and therefore no melting point but a melting range was stated. The test substance melted in the range of 120 to 129 °C.


Executive summary:

The determination of the melting temperature of the test substance was performed by the capillary method with hot block heating.

"Grewe-diamin" melted between 120 °C and 129 °C. The difference between the temperature at the beginning and at the final stage of melting is not within the limits of the accuracy of the method (+-0.5 °C) and therefore no melting point but a melting range was stated. The test substance melted in the range of 120 to 129 °C.