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Molar mass: 95.53 g·mol −1 Appearance Orthorhombic bipyramidal crystals Density: 1.354 g/cm 3 at 20 °C ... Guanidinium chloride or guanidine hydrochloride, ...
Molar mass: 59.072 g·mol −1 ... Guanidine is the compound with the formula HNC ... (also known as guanidine hydrochloride) ...
Arginine is the amino acid with the formula (H 2 N)(HN)CN(H)(CH 2) 3 CH(NH 2)CO 2 H. The molecule features a guanidino group appended to a standard amino acid framework. At physiological pH, the carboxylic acid is deprotonated (−CO 2 −) and both the amino and guanidino groups are protonated, resulting in a cation.
Molar mass: 153.225 g/mol Appearance clear liquid [2] Density: 1063.35 kg/m 3 ... is a bicyclic strong guanidine base (pK a = 25.43 in CH 3 CN and pK a = 17.9 in THF ...
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Two experiments conducted by Levy et al. showed that heating 10 mol·L −1 NH 4 CN at 80 °C for 24 hours gave a yield of 0.0007%, while using 0.1 mol·L −1 NH 4 CN frozen at −20 °C for 25 years gave a 0.0035% yield. These results indicate guanine could arise in frozen regions of the primitive earth.
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Molar mass: 74.085 g/mol Density: 1.72 g/ml Boiling point: 261 °C (502 °F; 534 K) log P: −1.475 Related compounds Related compounds. Guanidine: