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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental result performed using standard methods of analysis
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
The Freezing point determination of [4-[[4- (dimethylamino)phenyl][4-(methylamino)phenyl]methylene]cyclohexa-2,5-dien-1- ylidene]dimethylammonium acetate (CAS No.84434-47-9) was done using crushed ice and salt.
GLP compliance:
not specified
Type of method:
other: standard laboratory method
Specific details on test material used for the study:
- Name of test material : N-(4-{[4-(dimethylamino)phenyl][4-(methylamino)phenyl]methylene}cyclohexa-2,5-dien-1-ylidene)-N-methylmethanaminium acetate
- Molecular formula: C24H28N3C2H3O2
- Molecular weight : 417.5499 g/mol
- Smiles notation : CC(=O)[O-].CNc1ccc(cc1)C(=C2C=CC(=[N+](C)C)C=C2)c3ccc(cc3)N(C)C
- InChl : 1S/C24H27N3.C2H4O2/c1-25-21-12-6-18(7-13-21)24(19-8-14-22(15-9-19)26(2)3)20-10-16-23(17-11-20)27(4)5;1-2(3)4/h6-17H,1-5H3;1H3,(H,3,4)
- Substance type:Organic
- Physical state:Liquid
Key result
Melting / freezing pt.:
< -17.93 °C
Atm. press.:
970.1 hPa
Remarks on result:
other: other details not available
Conclusions:
The Freezing point determination of [4-[[4- (dimethylamino)phenyl][4-(methylamino)phenyl]methylene]cyclohexa-2,5-dien-1- ylidene]dimethylammonium acetate (CAS No.84434-47-9) was done using crushed ice and salt. No freezing was observed up to -17.93 °C. Hence, the freezing point was inferred to be less than -17.93 °C at 971.1 hPa.
Executive summary:

The Freezing point determination of [4-[[4- (dimethylamino)phenyl][4-(methylamino)phenyl]methylene]cyclohexa-2,5-dien-1- ylidene]dimethylammonium acetate (CAS No.84434-47-9) was done using crushed ice and salt. No freezing was observed up to -17.93 °C. Hence, the freezing point was inferred to be less than -17.93 °C at 971.1 hPa.

Description of key information

The Freezing point determination of [4-[[4- (dimethylamino)phenyl][4-(methylamino)phenyl]methylene]cyclohexa-2,5-dien-1- ylidene]dimethylammonium acetate (CAS No.84434-47-9) was done using crushed ice and salt. No freezing was observed up to -17.93 °C. Hence, the freezing point was inferred to be less than -17.93 °C at 971.1 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-17.93 °C

Additional information

The Freezing point determination of [4-[[4- (dimethylamino)phenyl][4-(methylamino)phenyl]methylene]cyclohexa-2,5-dien-1- ylidene]dimethylammonium acetate (CAS No.84434-47-9) was done using crushed ice and salt. No freezing was observed up to -17.93 °C. Hence, the freezing point was inferred to be less than -17.93 °C at 971.1 hPa.