4-Aminopyrimidine Chemical Properties

Melting point:

154-156 °C (lit.)

Boiling point:

167.6°C (rough estimate)

Density 

1.1031 (rough estimate)

refractive index 

1.5200 (estimate)

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

form 

Crystals or Powder

pka

5.71(at 20℃)

color 

White to slightly beige

Water Solubility 

Slightly soluble in water.

λmax

273nm(EtOH)(lit.)

CAS DataBase Reference

591-54-8(CAS DataBase Reference)

NIST Chemistry Reference

Pyrimidine, 4-amino-,(591-54-8)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-37/39

WGK Germany 

3

HS Code 

29339900

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

4-Aminopyrimidine Usage And Synthesis

Chemical Properties

White to slightly beige crystals or powder

Uses

4-Aminopyrimidine has been used in the preparation of 1:4-dihydro-4-imino-1-methylpyrimidine hydriodide.

Definition

ChEBI: Pyrimidin-4-amine is an aminopyrimidine.

General Description

The consequences of one-electron oxidation and one-electron reduction were studied for 4-aminopyrimidine.

Purification Methods

Recrystallise 10.6g of aminopyrimidine from hot EtOAc (200mL) to give 7.4g colourless needles as first crop; evaporation to 25mL gives a second crop of 1.7g. The hydroiodide has m 180o. The picrate has m 225o. [Brown J Soc Chem Ind (London) 69 353 1950, Beilstein 24 H 81, 24 III/IV 2130.]

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