Гидрохлорид пиридоксина

Химические свойства

White or almost white, crystalline powder.

Использование

Pyridoxine Hydrochloride is an acid form of vitamin b6, a water- soluble vitamin. it is soluble in water, and slightly soluble in alco- hol. it is slowly affected by sunlight and is reasonably stable in air. it has a ph of 2.3–3.5. it is also termed vitamin b6 hydrochloride. see pyridoxine.

Определение

ChEBI: Pyridoxine hydrochloride is the hydrochloride salt of pyridoxine. It is a hydrochloride and a vitamin B6. It contains a pyridoxine.

прикладной

Pyridoxine hydrochloride has been used:
As a vitamin component in a chemically defined diet with balanced metal content for metal depletion studies;
As a component of chemically defined medium (CDM) to culture Staphylococcus aureus WSPPA;
As analytical reference standards for the determination of analytes in pharmaceutical preparations by chromatography and spectrophotometric techniques;
As a vitamin to study the impact of protein expression and post-translational modifications specifically charge heterogeneity;
As a medicine, it is used to prevent or treat certain neurological disorders (peripheral neuropathy) caused by certain drugs (e.g. isoniazid). It is also used in the treatment of certain hereditary disorders (e.g. flavoururic aciduria, hyperoxaluria, homocystinuria).

Общее описание

Vitamin B6 has six forms namely, pyridoxal, pyridoxine, pyridoxamine, pyridoxamine 5′-phosphate, pyridoxine 5′-phosphate and pyridoxal 5′-phosphate. Pyridoxine is a is a water-soluble vitamin and a pyrimidine derivative of vitamin B6. It is considered heat and acid stable.

Профиль безопасности

Poison by intravenous route. Moderately toxic by ingestion, intramuscular, and subcutaneous routes. Human reproductive effects by ingestion and intramuscular routes: postpartum changes. Experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and HCl.

Методы очистки

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.]