4-Pyridoxic acid

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4-Pyridoxic acid
2D structure for 4-Pyridoxic acid
Chemical Name	3-hydroxy-5-(hydroxymethyl)-2-methyl-pyridine-4-carboxylic acid
Chemical Formula	C₈H₉NO₄
CAS Number	82-82-6
Chemical Information	HMDB00017
Biochemical Taxonomy	Pyridoxals and Derivatives
Functional Taxonomy	Not Available
Nutritional Taxonomy	Not Available
Metabolic Pathways	Nicotinate and Nicotinamide Metabolism Valine, Leucine and Isoleucine Degradation Vitamin B6 Metabolism
Biofluid Location	Blood Urine
Tissue Location	Erythrocyte Kidney Liver Bladder
Normal Biofluid Concentrations	Blood: 0.0071 +/- 0.005 uM Blood: 0.0097 +/- 0.00665 uM Blood: 0.027 (0.0062-3.14) umol/L Blood: 0.040 +/- 0.007 uM Urine: 12.52 +/- 6.53 umol/mmol creatinine Urine: > 3.0 uM
Normal Tissue Concentrations	Not Available
Diseases / Conditions Related to Nutrition	Not Available
Other (Monogenic Disorders)	Not Available
Abnormal Biofluid Concentrations	Not Available
Abnormal Tissue Concentrations	Not Available
Physiological Processes	Not Available

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Introduction

guidelines
The catabolic product of vitamin B6 (pyridoxine, pyridoxal and pyradoxamine) which is excreted in the urine. Urine levels of 4-pyridoxic acid are lower in females than in males and will be reduced in persons with riboflavin deficiency.