Title: Pyrimidine
CAS Registry Number: 289-95-2
Additional Names: 1,3-Diazine; metadiazine; miazine
Molecular Formula: C4H4N2
Molecular Weight: 80.09
Percent Composition: C 59.99%, H 5.03%, N 34.98%
Literature References: Prepd by reducing 2,4,6-trichloropyrimidine with zinc dust: Gabriel, Ber. 33, 3666 (1900); by reducing tetrachloropyrimidine: Emery, ibid. 34, 4180 (1901); by reducing 2,4-dichloropyrimidine with magnesium oxide and palladium-charcoal: Wittaker, J. Chem. Soc. 1953, 1646.
Properties: Liquid or cryst mass; penetrating odor. mp 20-22°. bp762 123-124°. uv max (water): 240 nm (e 2400). Soluble in water, alcohol, ether.
Melting point: mp 20-22°
Boiling point: bp762 123-124°
Absorption maximum: uv max (water): 240 nm (e 2400)
Derivative Type: Methiodide
Molecular Formula: C4H4N2.CH3I
Molecular Weight: 222.03
Percent Composition: C 27.05%, H 3.18%, N 12.62%, I 57.16%
Properties: Yellow plates from ethanol, mp 136-137°.
Melting point: mp 136-137°

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