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  2. Guanine - Wikipedia

    en.wikipedia.org/wiki/Guanine

    First, guanine gets deaminated to become xanthine. [2] Guanine oxidizes more readily than adenine, the other purine-derivative base in DNA. Its high melting point of 350 °C reflects the intermolecular hydrogen bonding between the oxo and amino groups in the molecules in the crystal.

  3. List of boiling and freezing information of solvents - Wikipedia

    en.wikipedia.org/wiki/List_of_boiling_and...

    Boiling pointC) K b (°C⋅kg/mol) Freezing pointC) K f (°C⋅kg/mol) Data source; Aniline: 184.3 3.69 –5.96 –5.87 K b & K f [1] Lauric acid: 298.9 44 ...

  4. Boiling points of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Boiling_points_of_the...

    This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia. ... Melting points of the elements ...

  5. Guanosine - Wikipedia

    en.wikipedia.org/wiki/Guanosine

    Guanosine (symbol G or Guo) is a purine nucleoside comprising guanine attached to a ribose (ribofuranose) ring via a β-N 9-glycosidic bond.Guanosine can be phosphorylated to become guanosine monophosphate (GMP), cyclic guanosine monophosphate (cGMP), guanosine diphosphate (GDP), and guanosine triphosphate (GTP).

  6. Nucleic acid thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid_thermodynamics

    The melting temperature, T m, occurs when half of the double-stranded nucleic acid has dissociated. If no additional nucleic acids are present, then [A], [B], and [AB] will be equal, and equal to half the initial concentration of double-stranded nucleic acid, [AB] initial. This gives an expression for the melting point of a nucleic acid duplex of

  7. Melting points of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Melting_points_of_the...

    The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [Handbook on the chemistry and physics of rare earths, vol.12 (1989)] is given with 1529 °C.

  8. Guanidine - Wikipedia

    en.wikipedia.org/wiki/Guanidine

    That is, the C=O group in carbonic acid is replaced by a C=NH group, and each OH is replaced by a NH 2 group. [5] Isobutene can be seen as the carbon analogue in much the same way. A detailed crystallographic analysis of guanidine was elucidated 148 years after its first synthesis, despite the simplicity of the molecule. [6]

  9. Adenine - Wikipedia

    en.wikipedia.org/wiki/Adenine

    Melting point: 360 to 365 °C (680 to 689 °F; 633 to 638 K) decomposes Solubility in water. ... Purine metabolism involves the formation of adenine and guanine.