How do I convert Pyridoxal 5'-phosphate (CSF) from ng/mL to nmol/L?

nmol/L = ng/mL × 4.046. In the other direction: ng/mL = nmol/L × 0.2471.

Which units are used for Pyridoxal 5'-phosphate (CSF)?

Common units are ng/mL, nmol/L.

Urine & CSF

Pyridoxal 5'-phosphate in cerebrospinal fluid (pyridoxine-dependent epilepsy)

Also known as: Pyridoxal-5'-phosphat (Liquor)

Enter a value in any unit and all other units fill in.

ng/mL nmol/L

10 nmol/L = 2.47 ng/mL

nmol/L	nmol/L = ng/mL × 4.046	ng/mL = nmol/L × 0.2471

Pyridoxal 5'-phosphate (CSF) is reported in ng/mL or nmol/L. The page converts between the units only.

nmol/L × 0.2471 = ng/mL (exact factor 0.2471).
CSF values are only meaningful together with a blood sample taken at the same time; no established reference range is listed here.

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Source: PubChem: Pyridoxal 5'-phosphate · Last reviewed: 2026-10-19

Note from the source: No established reference range; the page converts units only. Mass-to-amount conversion uses a molar mass of 247.14 g/mol.