Date published: 2026-1-31

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Neu5Ac-α-4MU (CAS 76204-02-9)

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Alternate Names:
4-MU-NANA⋅Na; 2-(4-Methylumbelliferyl)-α-D-N-acetylneuraminic Acid, Sodium Salt
Application:
Neu5Ac-α-4MU is used as a substrate in a fluorometric assay of neuraminidase
CAS Number:
76204-02-9
Molecular Weight:
489.39
Molecular Formula:
C21H24NO11•Na
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Neu5Ac-α-4MU is a synthetically produced compound used in biochemical assays to study sialic acid metabolism and sialidase (neuraminidase) enzyme activity. This compound is employed as a fluorogenic substrate in enzyme assays, where the release of 4-methylumbelliferone upon cleavage by sialidases can be quantified using fluorescence spectroscopy. As such, Neu5Ac-α-4MU is instrumental in characterizing sialidase activity in various biological samples, including bacterial, viral, and mammalian systems. Its use facilitates the screening of sialidase inhibitors and contributes to the understanding of the role of sialic acids in cellular communication, pathogen infection, and immune responses.


Neu5Ac-α-4MU (CAS 76204-02-9) References

  1. Integration of neuraminidase inhibitor assay into a single-step operation using a combinable poly(dimethylsiloxane) capillary sensor.  |  Ishimoto, T., et al. 2013. Analyst. 138: 3158-62. PMID: 23571501
  2. Fluorometric assay of neuraminidase with a sodium (4-methylumbelliferyl-alpha-D-N-acetylneuraminate) substrate.  |  Potier, M., et al. 1979. Anal Biochem. 94: 287-96. PMID: 464297
  3. The synthesis of 4-methylumbelliferyl alpha-ketoside of N-acetylneuraminic acid and its use in a fluorometric assay for neuraminidase.  |  Myers, RW., et al. 1980. Anal Biochem. 101: 166-74. PMID: 6243885

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Neu5Ac-α-4MU, 10 mg

sc-222055
10 mg
$210.00

Neu5Ac-α-4MU, 100 mg

sc-222055A
100 mg
$300.00

Neu5Ac-α-4MU, 250 mg

sc-222055B
250 mg
$750.00

Neu5Ac-α-4MU, 500 mg

sc-222055C
500 mg
$1660.00

Neu5Ac-α-4MU, 1 g

sc-222055D
1 g
$2800.00