DBCO-NHS ester

Cat. # Quantity Price Lead time
34720 10 mg $80 in stock
44720 25 mg $110 in stock
54720 50 mg $135 5 days
64720 100 mg $210 $178 in stock
94720 1 g $1000 $970 in stock
K4720 5 g $3570 $2990 in stock
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Dibenzocyclooctyne (ADIBO, DBCO) is one of the most reactive cycloalkynes for strain-promoted alkyne azide cycloaddition (SPAAC) — a copper-free click chemistry reaction.

DBCO reacts instantly with azides. The reaction rate is much higher than that of copper-catalyzed reaction, and reactions with many other cyclooctynes. Unlike some other cyclooctynes, DBCO does not react with tetrazines — this allows to carry out orthogonal conjugation of azides with DBCO, and trans-cyclooctenes with tetrazines.

This amine-reactive NHS ester provides easy attachment of the reactive moiety to almost any primary or secondary amine group, such as protein, peptide, or small molecule amine.

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sulfo-Cyanine3 alkyne

A water-soluble dye alkyne for copper-catalyzed click chemistry. The fluorophore sulfo-Cyanine3 is a bright and photostable dye for the Cy3® channel.

General properties

Appearance: off white solid
Mass spec M+ increment: 315.1
Molecular weight: 430.45
CAS number: 1384870-47-6
Molecular formula: C25H22N2O5
IUPAC name: 6-{2-Azatricyclo[10.4.0.04,9]hexadeca-1(16),4,6,8,12,14-hexaen-10-yn-2-yl}-6-oxohexanamide
Solubility: good in DCM, DMF, DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Product citations

  1. Mitchell, M.I.; Ben‐Dov, I.Z.; Ye, K.; Liu, C.; Shi, M.; Sadoughi, A.; Shah, C.; Siddiqui, T.; Okorozo, A.; Gutierrez, M.; Unawane, R.; Biamonte, L.; Parihk, K.; Spivack, S.; Loudig, O. Exhaled breath condensate contains extracellular vesicles (EVs) that carry miRNA cargos of lung tissue origin that can be selectively purified and analyzed. Journal of Extracellular Vesicles, 2024, 13(4), e12440. doi: 10.1002/jev2.12440
  2. Mitchell, M.I.; Ben-Dov, I.Z.; Liu, C.; Wang, T.; Hazan, R.B.; Bauer, T.L.; Zakrzewski, J.; Donnelly, K.; Chow, K.; Ma, J.; Loudig, O. Non-invasive detection of orthotopic human lung tumors by microRNA expression profiling of mouse exhaled breath condensates and exhaled extracellular vesicles. Extracellular Vesicles and Circulating Nucleic Acids, 2024, 5(1), 138-64. doi: 10.20517/evcna.2023.77
  3. Mitchell, M.I.; Khalil, M.; Ben-Dov, I.Z.; Alverez-Perez, J.; Illsley, N.P.; Zamudio, S.; Al-Khan, A.; Loudig, O. Customizing EV-CATCHER to Purify Placental Extracellular Vesicles from Maternal Plasma to Detect Placental Pathologies. International Journal of Molecular Sciences, 2024, 25(10), 5102. doi: 10.3390/ijms25105102
  4. Gabold, B.; Adams, F.; Brameyer, S.; Jung, K.; Ried, C. L.; Merdan, T.; Merkel, O. M. Transferrin-Modified Chitosan Nanoparticles for Targeted Nose-to-Brain Delivery of Proteins. Drug Deliv. and Transl. Res., 2023, 13(3), 822–838. doi: 10.1007/s13346-022-01245-z
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