MHPG (CSF) unit converter
Main noradrenaline metabolite in CSF
Also known as: 3-methoxy-4-hydroxyphenylglycol CSF, CSF MHPG, MHPG im Liquor
Converter
Enter a value in any unit and all other units fill in.
Worked example
44 nmol/L (middle of the reference range) = 8.1 ng/mL
Conversion formulas
| ng/mL | ng/mL = nmol/L × 0.1842 | nmol/L = ng/mL × 5.43 |
|---|---|---|
| µg/dL | µg/dL = nmol/L × 0.01842 | nmol/L = µg/dL × 54.29 |
| ng/dL | ng/dL = nmol/L × 18.42 | nmol/L = ng/dL × 0.05429 |
| ng/L | ng/L = nmol/L × 184.2 | nmol/L = ng/L × 0.005429 |
Good to know
MHPG is the main noradrenaline breakdown product in cerebrospinal fluid. It is reported in nmol/L or in ng/mL.
- ng/mL × 5.43 = nmol/L (exact factor 5.43).
- The range depends strongly on age and on the laboratory, so it applies to adults only.
Reference range
| Unit | Adults |
|---|---|
| ng/mL | 5.157 – 11.05 |
| nmol/L | 28 – 60 |
| µg/dL | 0.5157 – 1.105 |
| ng/dL | 515.7 – 1105 |
| ng/L | 5157 – 11 051 |
Source: Cerebrospinal fluid neurotransmitters, pterins, folates and amino acids in paediatric-onset epilepsies, Children 2025 (age-related reference ranges of the authors' laboratory, PMC) · Last reviewed: 2026-10-19
Note from the source: Adults above 15 years 28-60 nmol/L (age-related ranges of the authors' laboratory; infants up to 0-3 months 98-168 nmol/L). 1 ng/mL = 5.43 nmol/L