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5439-14-5

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5439-14-5 Structure

5439-14-5 Structure
IdentificationBack Directory
[Name]

3,4-DIHYDRO-2H-PYRIDO[1,2-A]PYRIMIDIN-2-ONE
[CAS]

5439-14-5
[EINECS(EC#)]

226-618-2
[Molecular Formula]

C8H8N2O
[MDL Number]

MFCD00042798
[MOL File]

5439-14-5.mol
[Molecular Weight]

148.16
Chemical PropertiesBack Directory
[Melting point ]

185-187 °C
[Boiling point ]

271℃
[density ]

1.26
[Fp ]

118℃
[storage temp. ]

2-8°C
[BRN ]

3667723
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
[Safety Statements ]

22-24/25
[WGK Germany ]

3
[F ]

9-23
[HS Code ]

29339900
Hazard InformationBack Directory
[Purification Methods]

Dissolve it in CHCl3, filter, evaporate, then recrystallise the residue from EtOH/Me2CO (needles) which can be washed with Et2O and dried. It can also be recrystallised from CHCl3/pet ether or CHCl3/hexane. The hydrochloride has m 295-295o (dec, from EtOH or MeOH/Et2O), the hydrobromide has m 299-300o(dec) (from MeOH/Et2O) and the picrate has m 224-226o(corr), m 219-220o from EtOH. [Adams & Pachter J Am Chem Soc 74 4906 1952, Lappin J Org Chem 23 1358 1958, Hurd & Hayao J Am Chem Soc 77 115 1955, Beilstein 24 III/IV 299.]
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