Date published: 2026-4-5

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5-DTAF hydrochloride (CAS 21811-74-5)

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Alternate Names:
5-[(4,6-Dichlorotriazin-2-yl)amino]fluorescein hydrochloride; NSC378139
CAS Number:
21811-74-5
Molecular Weight:
531.80
Molecular Formula:
C23H12Cl2N4O5•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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With a molecular weight of 531.7 g/mol, is highly valuable for investigating the adhesion of yeast cells to the digestive tract of sea bass. Its purity is typically 95%. This compound has been extensively employed in the labeling of yeast cells for this specific research purpose. The compound consists of a fluorescein core, which is a fluorophore, attached to a triazine group. The hydrochloride form is obtained by adding a hydrochloric acid molecule (HCl) to the compound, resulting in the formation of a salt. This salt form is often used for experimental purposes due to its improved solubility in aqueous solutions.


5-DTAF hydrochloride (CAS 21811-74-5) References

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  4. Simultaneous determination of memantine and amantadine in human plasma as fluorescein derivatives by micellar electrokinetic chromatography with laser-induced fluorescence detection and its clinical application.  |  Yeh, HH., et al. 2010. Electrophoresis. 31: 1903-11. PMID: 20446294
  5. A polysaccharide extracted from Grifola frondosa enhances the anti-tumor activity of bone marrow-derived dendritic cell-based immunotherapy against murine colon cancer.  |  Masuda, Y., et al. 2010. Cancer Immunol Immunother. 59: 1531-41. PMID: 20563803
  6. The effect of lipid composition on the permeability of fluorescent markers from photosensitized membranes.  |  Ytzhak, S., et al. 2013. Photochem Photobiol. 89: 619-24. PMID: 23278678
  7. Laser-structured bacterial nanocellulose hydrogels support ingrowth and differentiation of chondrocytes and show potential as cartilage implants.  |  Ahrem, H., et al. 2014. Acta Biomater. 10: 1341-53. PMID: 24334147
  8. Characterization and pathogenicity of Vibrio splendidus strains associated with massive mortalities of commercial hatchery-reared larvae of scallop Argopecten purpuratus (Lamarck, 1819).  |  Rojas, R., et al. 2015. J Invertebr Pathol. 124: 61-9. PMID: 25450196
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Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

5-DTAF hydrochloride, 500 mg

sc-505921
500 mg
$226.00

5-DTAF hydrochloride, 2.5 g

sc-505921A
2.5 g
$1020.00