Date published: 2025-10-14

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Sulfapyridine-d4 (CAS 1189863-86-2)

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Alternate Names:
4-Amino-N-2-pyridinyl(benzene-d4)sulfonamide; 2-Sulfanilamidopyridine-d4; 2-Sulfapyridine-d4
Application:
Sulfapyridine-d4 is an isotopically labeled antibacterial agent
CAS Number:
1189863-86-2
Molecular Weight:
253.31
Molecular Formula:
C11H7D4N3O2S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Sulfapyridine-d4 is a compound that functions as a competitive inhibitor of dihydropteroate synthase, an enzyme involved in the folate synthesis pathway in bacteria. By inhibiting this enzyme, Sulfapyridine-d4 disrupts the production of tetrahydrofolic acid, which is for the synthesis of nucleic acids and amino acids in bacteria. This disruption ultimately leads to the inhibition of bacterial growth and proliferation. Sulfapyridine-d4 achieves this by binding to the active site of dihydropteroate synthase, preventing the enzyme from catalyzing the formation of dihydropteroic acid, a precursor in folate synthesis. As a result, the bacteria are unable to produce biomolecules, leading to their eventual demise. This mechanism of action makes Sulfapyridine-d4 useful for studying bacterial folate metabolism and developing strategies to combat bacterial infections.


Sulfapyridine-d4 (CAS 1189863-86-2) References

  1. Presence and hazards of nutrients and emerging organic micropollutants from sewage lagoon discharges into Dead Horse Creek, Manitoba, Canada.  |  Carlson, JC., et al. 2013. Sci Total Environ. 445-446: 64-78. PMID: 23314381
  2. An LC-MS/MS method for the simultaneous quantitation of sulfasalazine and sulfapyridine in human placenta.  |  Louw, V., et al. 2023. J Pharm Biomed Anal. 235: 115633. PMID: 37597383
  3. A modified QuEChERS-based UPLC-MS/MS method for rapid determination of multiple antibiotics and sedative residues in freshwater fish.  |  Yang, Y., et al. 2024. Food Chem X. 22: 101268. PMID: 38495454

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Sulfapyridine-d4, 1 mg

sc-220166
1 mg
$454.00