One of the vitamins of the B6 complex; present in many foodstuffs (yeast, liver and cereals). It has a role in transporting protein Bsu1, contributes to thiamine uptake; characterization of thiamine (vitamin B1) transporter Thi9 from Schizosaccharomyces p
Pyridoxine is one of the vitamins of the B6 complex; present in many foodstuffs (yeast, liver and cereals). Pyridoxine has a role in transporting protein Bsu1, Pyridoxine contributes to thiamine uptak
e; characterization of thiamine (vitamin B1) transporter Thi9 from Schizosaccharomyces pombe.
Purify the vitamin by recrystallisation from EtOH/Me2CO, n-BuOH or MeOH/Et2O. Its solubility in H2O is 22%, and in EtOH it is 1.1%. It is insoluble in Et2O and CHCl3. Acidic aqueous solutions are stable at 120o/30minute. The free base has m 159-160o after recrystallisation from Me2CO and sublimation at 140-145o/0.0001mm. It has UV max at 290nm ( 84,000), 253 and 325nm ( 3,700 and 7,100) in 0.1N aqueous HCl. [Khua & Wendt Chem Ber 71 780 1938, 72 311 1939, Harris & Folkers J Am Chem Soc 61 1242 1939, Harris et al. J Am Chem Soc 62 3198 1940, Beilstein 21/5 V 492.]