Date published: 2025-12-5

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Urobilin hydrochloride (CAS 28925-89-5)

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Alternate Names:
Urobilin hydrochloride is also known as Urobilin hydrochloride (mixture of isomers).
Application:
Urobilin hydrochloride is a heme degradation tetrapyrrole bile pigment compound formed by the degradation of heme.
CAS Number:
28925-89-5
Molecular Weight:
627.17
Molecular Formula:
C33H42N4O6•HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Urobilin hydrochloride is a tetrapyrrole bile pigment formed by the degradation of heme. It is produced via the oxidation of urobilinogen, a degradation product of bilirubin. Urobilin hydrochloride is excreted in urine and causes the yellow color, making it a key marker in urinalysis. It can also be used as a marker of human waste contamination in recreational and source waters to assess water quality.


Urobilin hydrochloride (CAS 28925-89-5) References

  1. ON THE ORIGIN OF THE OPTICAL ACTIVITY IN THE UROBILINS.  |  MOSCOWITZ, A., et al. 1964. Proc Natl Acad Sci U S A. 52: 1190-4. PMID: 14231439
  2. The highly abundant urinary metabolite urobilin interferes with the bicinchoninic acid assay.  |  Sampson, DL., et al. 2013. Anal Biochem. 442: 110-7. PMID: 23911526
  3. Ultrasensitive detection of waste products in water using fluorescence emission cavity-enhanced spectroscopy.  |  Bixler, JN., et al. 2014. Proc Natl Acad Sci U S A. 111: 7208-11. PMID: 24799690
  4. Photophysics of faecal pigments stercobilin and urobilin in aliphatic alcohols: introduction of a sensitive method for their detection using solvent phase extraction and fluorometry.  |  Prakash, S. and Mishra, AK. 2021. Anal Methods. 13: 5573-5588. PMID: 34787126

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Urobilin hydrochloride, 5 mg

sc-264485
5 mg
$485.00

Urobilin hydrochloride, 10 mg

sc-264485A
10 mg
$972.00

Urobilin hydrochloride, 50 mg

sc-264485B
50 mg
$3570.00