| Identification | Back Directory | [Name]
5-AMINOPYRIMIDINE | [CAS]
591-55-9 | [Synonyms]
5-Pyrimidinamine
5-AMINOPYRIMIDINE
PYRIMIDIN-5-AMINE
PYRIMIDIN-5-YLAMINE
5-Aminopyrimidine >
5-Aminopyrimidine?New
5-Pyrimidinamine (9CI)
5-AMINOPYRIMIDINE (MFCD
5-AMINOPYRIMIDINE ISO 9001：2015 REACH
Pyrimidin-5-amine, 5-Amino-1,3-diazine | [Molecular Formula]
C4H5N3 | [MDL Number]
MFCD01529870 | [MOL File]
591-55-9.mol | [Molecular Weight]
95.1 |
| Chemical Properties | Back Directory | [Melting point ]
171°C(lit.) | [Boiling point ]
240.7±13.0 °C(Predicted) | [density ]
1.216±0.06 g/cm3(Predicted) | [storage temp. ]
Room temperature. | [form ]
powder to crystal | [pka]
2?+-.0.10(Predicted) | [color ]
White to Light yellow | [λmax]
315nm(EtOH)(lit.) | [InChIKey]
FVLAYJRLBLHIPV-UHFFFAOYSA-N |
| Hazard Information | Back Directory | [Definition]
ChEBI: Pyrimidin-5-amine is an aminopyrimidine. | [Purification Methods]
It is purified by conversion to the MgCl2 complex in a small volume of H2O. The complex (~ 5g) is dissolved in the minimum volume of hot H2O, passed through a column of activated Al2O3 (200g), and the column is washed with EtOH. Evaporation of the EtOH gives a colourless residue of the aminopyrimidine which is recrystallised from *C6H6 (toluene could also be used) which forms needles at first, then prisms. It melts with sublimation. Acetylation yields 5-acetamidopyrimidine which crystallises from *C6H6, m 148-149o. [Whittaker J Chem Soc 1565 1951.] |
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