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JWH-073 Butanoate-to-Creatinine Ratio, Urine

Published: August 9, 2026Updated: August 16, 2026

A urine test that measures a JWH-073 metabolite relative to creatinine, helping assess exposure to the synthetic cannabinoid JWH-073.

Quick summary

["An elevated result can support recent exposure to JWH-073, but it does not by itself show impairment or when use occurred."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
72779-2
Short code
JWH-073 butanoate/Creat Ur
Synonyms
JWH-073 butanoate/Creat Ur
Category
kidney
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What is this test?

This test measures JWH-073 butanoate in urine. This substance is a metabolite associated with use of JWH-073, a synthetic cannabinoid sometimes called a synthetic marijuana or spice product. The result may be reported relative to urine creatinine to account for differences in urine concentration.

Why might I need this test?

This test may be used to investigate possible use of JWH-073, including in workplace, school, legal, or other drug-screening situations. It may also be ordered as part of an evaluation for substance exposure.

How is the test performed?

A urine sample is collected and analyzed in a laboratory. The laboratory measures JWH-073 butanoate and compares its amount with the creatinine level in the same sample. A confirmatory laboratory procedure may be used when an initial result is unexpected or important for a consequential decision.

How do I prepare for the test?

Follow the collection instructions provided by the laboratory or requesting organization. Fasting is generally not required, but the testing agency may have specific collection, timing, or chain-of-custody rules. Drink fluids normally unless you have been given other instructions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

JWH-073 urine metabolite test

Frequently asked questions

Does a positive result mean I was impaired?
No. The test can indicate exposure, but it cannot determine whether you were impaired, how much you used, or when the use occurred.
Why is my result compared with creatinine?
Urine can vary greatly in concentration. Comparing the metabolite with creatinine helps account for these differences and makes the result more interpretable.
Can this test detect every synthetic cannabinoid?
No. JWH-073 butanoate is specific to exposure associated with JWH-073, so use of other synthetic cannabinoids may not produce a positive result.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy