2-[(3,5-dimethyl pyrazolyl)carbamoyl]ethyl methacrylate

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 Nov 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

other: BS 4633 (Method for the Determination of Crystalizing Point)

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Test guideline 3

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

GLP compliance:

no

Type of method:

method to determine freezing temperature

Test material

Test material information

Constituent 1

Reference substance name:

2-[(3,5-dimethyl-1H-pyrazole-1-carbonyl)amino]ethyl 2-methylprop-2-enoate

EC Number:

680-413-6

Cas Number:

217437-44-0

Molecular formula:

C12H17N3O3

IUPAC Name:

2-[(3,5-dimethyl-1H-pyrazole-1-carbonyl)amino]ethyl 2-methylprop-2-enoate

Results and discussion

Melting / freezing point

Key result

Melting / freezing pt.:

< -20 °C

Atm. press.:

ca. 1 013 hPa

Remarks on result:

other: Atmospheric pressure not measured. Normal conditions (ca. 1013 hPa) are assumed, based on test method.

Any other information on results incl. tables

Determination 1

Time(s)	Temperature(K)	Time(s)	Temperature(K)
0	295	1140	260
30	295	1170	259
60	294	1200	258
90	292	1230	258
120	290	1260	258
150	288	1290	257
180	284	1320	257
210	281	1350	257
240	279	1380	256
270	277	1410	256
300	275	1440	256
330	274	1470	256
360	272	1500	256
390	271	1530	256
420	270	1560	256
450	269	1590	255
480	268	1620	255
510	268	1650	254
540	267	1680	254
570	266	1710	254
600	265	1740	253
630	265	1770	253
660	265	1800	253
690	264	1830	253
720	264	1860	252
750	264	1890	252
780	263	1920	252
810	263	1950	252
840	263	1980	252
870	263	2010	252
900	262	2040	252
930	262	2070	252
960	262	2100	252
990	262	2130	252
1020	262	2160	251
1050	262	2190	251
1080	261	2220	250
1110	260	2250	250

 

Observations: The test material became increasingly viscous during cooling.

Result: Freezing temperature < 253 K.

 

 

Determination 2

Time(s)	Temperature(K)	Time(s)	Temperature(K)
0	293	1140	258
30	292	1170	257
60	291	1200	257
90	290	1230	257
120	288	1260	256
150	286	1290	256
180	283	1320	255
210	280	1350	255
240	278	1380	254
270	277	1410	254
300	275	1440	254
330	274	1470	253
360	273	1500	253
390	272	1530	253
420	271	1560	253
450	270	1590	253
480	269	1620	253
510	268	1650	253
540	267	1680	253
570	267	1710	253
600	266	1740	253
630	265	1770	253
660	264	1800	253
690	264	1830	252
720	263	1860	252
750	262	1890	252
780	262	1920	252
810	261	1950	251
840	261	1980	251
870	260	2010	251
900	260	2040	251
930	259	2070	251
960	259	2100	251
990	259	2130	250
1020	258	2160	250
1050	258	2190	250
1080	258	2220	250
1110	258	2250	250

 

Observations: The test material became increasingly viscous during cooling.

Result: Freezing temperature < 253 K.

Applicant's summary and conclusion

Conclusions:

The freezing temperature of the substance has been determined to be less than -20 °C (253 K).