Date published: 2026-1-20

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SDA (NHS-Diazirine)

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Alternate Names:
Succinimidyl 4,4′-azipentanoate
Application:
SDA (NHS-Diazirine) is a NHS-diazirine based photoreactive crosslinker. Membrane permeable and cleavable with a 3.9 Angstrom spacer arm.
Molecular Weight:
225.20
Molecular Formula:
C9H11N3O4
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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SDA (NHS-Diazirine) is an amine and photoreactive, membrane permeable, heterobifunctional crosslinker with a 3.9 Angstrom spacer arm. The diazirine photoreactive group has improved photostability over aryl azides, yet is more efficiently activated by long-wave UV light (330-370nm). Activation of the diazirine releases nitrogen to produce a highly reactive carbene intermediate, which then indiscriminately bonds with nearby functional group.


SDA (NHS-Diazirine) References

  1. Claudin-2 forms homodimers and is a component of a high molecular weight protein complex.  |  Van Itallie, CM., et al. 2011. J Biol Chem. 286: 3442-50. PMID: 21098027
  2. KCNE1 induces fenestration in the Kv7.1/KCNE1 channel complex that allows for highly specific pharmacological targeting.  |  Wrobel, E., et al. 2016. Nat Commun. 7: 12795. PMID: 27731317
  3. Probing the interaction interface of the GADD45β/MKK7 and MKK7/DTP3 complexes by chemical cross-linking mass spectrometry.  |  Rega, C., et al. 2018. Int J Biol Macromol. 114: 114-123. PMID: 29572137
  4. PLiMAP: Proximity-Based Labeling of Membrane-Associated Proteins.  |  Jose, GP. and Pucadyil, TJ. 2020. Curr Protoc Protein Sci. 101: e110. PMID: 32603530
  5. Controlling Drug Absorption, Release, and Erosion of Photopatterned Protein Engineered Hydrogels.  |  Wang, Y., et al. 2020. Biomacromolecules. 21: 3608-3619. PMID: 32786534
  6. Analysis of RNA-protein networks with RNP-MaP defines functional hubs on RNA.  |  Weidmann, CA., et al. 2021. Nat Biotechnol. 39: 347-356. PMID: 33077962
  7. Free-Standing Photocrosslinked Protein Polymer Hydrogels for Sustained Drug Release.  |  Wang, Y., et al. 2021. Biomacromolecules. 22: 1509-1522. PMID: 33685120
  8. Non-Coding Variants in Cancer: Mechanistic Insights and Clinical Potential for Personalized Medicine.  |  Lange, M., et al. 2021. Noncoding RNA. 7: PMID: 34449663
  9. Effect of Divalent Metal Cations on the Conformation, Elastic Behavior, and Controlled Release of a Photocrosslinked Protein Engineered Hydrogel.  |  Wang, Y., et al. 2021. ACS Appl Bio Mater. 4: 3587-3597. PMID: 35014444
  10. Cooperative engagement and subsequent selective displacement of SR proteins define the pre-mRNA 3D structural scaffold for early spliceosome assembly.  |  Saha, K. and Ghosh, G. 2022. Nucleic Acids Res. 50: 8262-8278. PMID: 35871302
  11. SpotLink enables sensitive and precise identification of site nonspecific cross-links at the proteome scale.  |  Zhang, W., et al. 2022. Brief Bioinform. 23: PMID: 36093786
  12. Single-Molecule Correlated Chemical Probing: A Revolution in RNA Structure Analysis.  |  Mustoe, AM., et al. 2023. Acc Chem Res. 56: 763-775. PMID: 36917683
  13. Structure-first identification of RNA elements that regulate dengue virus genome architecture and replication.  |  Boerneke, MA., et al. 2023. Proc Natl Acad Sci U S A. 120: e2217053120. PMID: 37011200

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

SDA (NHS-Diazirine), 50 mg

sc-397278
50 mg
$437.00