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Sunday, February 22, 2009

Biological function of thiamine-

Thiamine is awater soluble B group vitamin. The molecule cantains a hydrochloride is a commonly used salt. The molecule contains a Pyrimidine ring and a thiazole ring linked by a methylene group. The nitrogen of two thiazoles ring is cationic and associated with chloride ion. The crystalline hydrochloride is a salt formed with weakly a bacisamino group. Thiamine hydrochloride occurs as a colourless crystal r white or almost white crystalline powder with a characteristic meat like odour and bitter taste. It is freely soluble in water. It is incompatible with oxidizing and reducing substance, mercuric chlorides, iodides, carbonates and ferric sulphate.

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